Home / 130,488,332.48-180,079,087.20-71,755,812.80

Finding the Fourth Proportional to 130,488,332.48, 180,079,087.20 and 71,755,812.80

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Solution

The fourth proportional to 130,488,332.48, 180,079,087.20 and 71,755,812.80 is: 99,025,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,488,332.48 : 180,079,087.20 = 71,755,812.80 : x
  2. Step 2: Convert to fraction form
    130,488,332.48/180,079,087.20 = 71,755,812.80/x
  3. Step 3: Cross multiply
    130,488,332.48x = 180,079,087.20 × 71,755,812.80
  4. Step 4: Simplify right side
    130,488,332.48x = 12,921,721,270,318,074
  5. Step 5: Solve for x
    x = 12,921,721,270,318,074/130,488,332.48
  6. Step 6: Final answer
    x = 99,025,874.76

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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.