Home / 80,312,499.95-120,471,605.07-25,717,991.57

Finding the Fourth Proportional to 80,312,499.95, 120,471,605.07 and 25,717,991.57

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Solution

The fourth proportional to 80,312,499.95, 120,471,605.07 and 25,717,991.57 is: 38,577,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,312,499.95 : 120,471,605.07 = 25,717,991.57 : x
  2. Step 2: Convert to fraction form
    80,312,499.95/120,471,605.07 = 25,717,991.57/x
  3. Step 3: Cross multiply
    80,312,499.95x = 120,471,605.07 × 25,717,991.57
  4. Step 4: Simplify right side
    80,312,499.95x = 3,098,287,723,367,597.50
  5. Step 5: Solve for x
    x = 3,098,287,723,367,597.50/80,312,499.95
  6. Step 6: Final answer
    x = 38,577,901.64

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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.