Home / 100,711,599.86-151,067,377.92-72,013,785.86

Finding the Fourth Proportional to 100,711,599.86, 151,067,377.92 and 72,013,785.86

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Solution

The fourth proportional to 100,711,599.86, 151,067,377.92 and 72,013,785.86 is: 108,020,663.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,711,599.86 : 151,067,377.92 = 72,013,785.86 : x
  2. Step 2: Convert to fraction form
    100,711,599.86/151,067,377.92 = 72,013,785.86/x
  3. Step 3: Cross multiply
    100,711,599.86x = 151,067,377.92 × 72,013,785.86
  4. Step 4: Simplify right side
    100,711,599.86x = 10,878,933,803,962,572
  5. Step 5: Solve for x
    x = 10,878,933,803,962,572/100,711,599.86
  6. Step 6: Final answer
    x = 108,020,663.15

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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.