Home / 99,278,569.60-148,917,854.40-72,404,713.60

Finding the Fourth Proportional to 99,278,569.60, 148,917,854.40 and 72,404,713.60

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Solution

The fourth proportional to 99,278,569.60, 148,917,854.40 and 72,404,713.60 is: 108,607,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,278,569.60 : 148,917,854.40 = 72,404,713.60 : x
  2. Step 2: Convert to fraction form
    99,278,569.60/148,917,854.40 = 72,404,713.60/x
  3. Step 3: Cross multiply
    99,278,569.60x = 148,917,854.40 × 72,404,713.60
  4. Step 4: Simplify right side
    99,278,569.60x = 10,782,354,597,758,500
  5. Step 5: Solve for x
    x = 10,782,354,597,758,500/99,278,569.60
  6. Step 6: Final answer
    x = 108,607,070.40

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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.