Home / 391,614,220.44-587,357,475.39-115,200,790.25

Finding the Fourth Proportional to 391,614,220.44, 587,357,475.39 and 115,200,790.25

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Solution

The fourth proportional to 391,614,220.44, 587,357,475.39 and 115,200,790.25 is: 172,782,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,614,220.44 : 587,357,475.39 = 115,200,790.25 : x
  2. Step 2: Convert to fraction form
    391,614,220.44/587,357,475.39 = 115,200,790.25/x
  3. Step 3: Cross multiply
    391,614,220.44x = 587,357,475.39 × 115,200,790.25
  4. Step 4: Simplify right side
    391,614,220.44x = 67,664,045,321,236,144
  5. Step 5: Solve for x
    x = 67,664,045,321,236,144/391,614,220.44
  6. Step 6: Final answer
    x = 172,782,401.12

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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.