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Finding the Fourth Proportional to 82,716,652.80, 124,074,979.20 and 56,888,620.20

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Solution

The fourth proportional to 82,716,652.80, 124,074,979.20 and 56,888,620.20 is: 85,332,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,716,652.80 : 124,074,979.20 = 56,888,620.20 : x
  2. Step 2: Convert to fraction form
    82,716,652.80/124,074,979.20 = 56,888,620.20/x
  3. Step 3: Cross multiply
    82,716,652.80x = 124,074,979.20 × 56,888,620.20
  4. Step 4: Simplify right side
    82,716,652.80x = 7,058,454,368,031,700
  5. Step 5: Solve for x
    x = 7,058,454,368,031,700/82,716,652.80
  6. Step 6: Final answer
    x = 85,332,930.30

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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.