Home / 72,578,451.15-108,615,734.33-66,531,833.55

Finding the Fourth Proportional to 72,578,451.15, 108,615,734.33 and 66,531,833.55

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Solution

The fourth proportional to 72,578,451.15, 108,615,734.33 and 66,531,833.55 is: 99,566,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,451.15 : 108,615,734.33 = 66,531,833.55 : x
  2. Step 2: Convert to fraction form
    72,578,451.15/108,615,734.33 = 66,531,833.55/x
  3. Step 3: Cross multiply
    72,578,451.15x = 108,615,734.33 × 66,531,833.55
  4. Step 4: Simplify right side
    72,578,451.15x = 7,226,403,957,021,921
  5. Step 5: Solve for x
    x = 7,226,403,957,021,921/72,578,451.15
  6. Step 6: Final answer
    x = 99,566,797.62

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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.