Home / 487,575,612,131.70-731,363,418,197.55-318,117,890,243.10

Finding the Fourth Proportional to 487,575,612,131.70, 731,363,418,197.55 and 318,117,890,243.10

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Solution

The fourth proportional to 487,575,612,131.70, 731,363,418,197.55 and 318,117,890,243.10 is: 477,176,835,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,575,612,131.70 : 731,363,418,197.55 = 318,117,890,243.10 : x
  2. Step 2: Convert to fraction form
    487,575,612,131.70/731,363,418,197.55 = 318,117,890,243.10/x
  3. Step 3: Cross multiply
    487,575,612,131.70x = 731,363,418,197.55 × 318,117,890,243.10
  4. Step 4: Simplify right side
    487,575,612,131.70x = 232,659,787,597,986,658,254,848
  5. Step 5: Solve for x
    x = 232,659,787,597,986,658,254,848/487,575,612,131.70
  6. Step 6: Final answer
    x = 477,176,835,364.65

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Double scale
Find fourth proportional to 487,575,612,132.70, 731,363,418,199.05 and 318,117,890,244.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.