Home / 318,999,177.74-440,300,766.40-207,767,191.34

Finding the Fourth Proportional to 318,999,177.74, 440,300,766.40 and 207,767,191.34

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Solution

The fourth proportional to 318,999,177.74, 440,300,766.40 and 207,767,191.34 is: 286,772,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,999,177.74 : 440,300,766.40 = 207,767,191.34 : x
  2. Step 2: Convert to fraction form
    318,999,177.74/440,300,766.40 = 207,767,191.34/x
  3. Step 3: Cross multiply
    318,999,177.74x = 440,300,766.40 × 207,767,191.34
  4. Step 4: Simplify right side
    318,999,177.74x = 91,480,053,579,777,440
  5. Step 5: Solve for x
    x = 91,480,053,579,777,440/318,999,177.74
  6. Step 6: Final answer
    x = 286,772,067.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.