Home / 80,572,539.20-120,858,808.80-69,613,044.80

Finding the Fourth Proportional to 80,572,539.20, 120,858,808.80 and 69,613,044.80

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Solution

The fourth proportional to 80,572,539.20, 120,858,808.80 and 69,613,044.80 is: 104,419,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,572,539.20 : 120,858,808.80 = 69,613,044.80 : x
  2. Step 2: Convert to fraction form
    80,572,539.20/120,858,808.80 = 69,613,044.80/x
  3. Step 3: Cross multiply
    80,572,539.20x = 120,858,808.80 × 69,613,044.80
  4. Step 4: Simplify right side
    80,572,539.20x = 8,413,349,671,469,034
  5. Step 5: Solve for x
    x = 8,413,349,671,469,034/80,572,539.20
  6. Step 6: Final answer
    x = 104,419,567.20

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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.