Home / 317,399,139.20-476,098,708.80-87,403,721.60

Finding the Fourth Proportional to 317,399,139.20, 476,098,708.80 and 87,403,721.60

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Solution

The fourth proportional to 317,399,139.20, 476,098,708.80 and 87,403,721.60 is: 131,105,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,399,139.20 : 476,098,708.80 = 87,403,721.60 : x
  2. Step 2: Convert to fraction form
    317,399,139.20/476,098,708.80 = 87,403,721.60/x
  3. Step 3: Cross multiply
    317,399,139.20x = 476,098,708.80 × 87,403,721.60
  4. Step 4: Simplify right side
    317,399,139.20x = 41,612,798,998,074,672
  5. Step 5: Solve for x
    x = 41,612,798,998,074,672/317,399,139.20
  6. Step 6: Final answer
    x = 131,105,582.40

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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.