Home / 82,755,009.20-124,132,513.80-69,840,992.90

Finding the Fourth Proportional to 82,755,009.20, 124,132,513.80 and 69,840,992.90

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Solution

The fourth proportional to 82,755,009.20, 124,132,513.80 and 69,840,992.90 is: 104,761,489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,755,009.20 : 124,132,513.80 = 69,840,992.90 : x
  2. Step 2: Convert to fraction form
    82,755,009.20/124,132,513.80 = 69,840,992.90/x
  3. Step 3: Cross multiply
    82,755,009.20x = 124,132,513.80 × 69,840,992.90
  4. Step 4: Simplify right side
    82,755,009.20x = 8,669,538,014,964,953
  5. Step 5: Solve for x
    x = 8,669,538,014,964,953/82,755,009.20
  6. Step 6: Final answer
    x = 104,761,489.35

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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.