Home / 18,715,092.90-28,025,400.15-12,290,561.70

Finding the Fourth Proportional to 18,715,092.90, 28,025,400.15 and 12,290,561.70

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Solution

The fourth proportional to 18,715,092.90, 28,025,400.15 and 12,290,561.70 is: 18,404,819.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,092.90 : 28,025,400.15 = 12,290,561.70 : x
  2. Step 2: Convert to fraction form
    18,715,092.90/28,025,400.15 = 12,290,561.70/x
  3. Step 3: Cross multiply
    18,715,092.90x = 28,025,400.15 × 12,290,561.70
  4. Step 4: Simplify right side
    18,715,092.90x = 344,447,909,710,764.19
  5. Step 5: Solve for x
    x = 344,447,909,710,764.19/18,715,092.90
  6. Step 6: Final answer
    x = 18,404,819.66

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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.