Home / 78,524,549.11-108,335,828.50-45,466,753.78

Finding the Fourth Proportional to 78,524,549.11, 108,335,828.50 and 45,466,753.78

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Solution

The fourth proportional to 78,524,549.11, 108,335,828.50 and 45,466,753.78 is: 62,727,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,524,549.11 : 108,335,828.50 = 45,466,753.78 : x
  2. Step 2: Convert to fraction form
    78,524,549.11/108,335,828.50 = 45,466,753.78/x
  3. Step 3: Cross multiply
    78,524,549.11x = 108,335,828.50 × 45,466,753.78
  4. Step 4: Simplify right side
    78,524,549.11x = 4,925,678,439,983,560
  5. Step 5: Solve for x
    x = 4,925,678,439,983,560/78,524,549.11
  6. Step 6: Final answer
    x = 62,727,879.32

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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.