Home / 13,137,500.90-18,138,282-11,758,456.46

Finding the Fourth Proportional to 13,137,500.90, 18,138,282 and 11,758,456.46

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Solution

The fourth proportional to 13,137,500.90, 18,138,282 and 11,758,456.46 is: 16,234,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,500.90 : 18,138,282 = 11,758,456.46 : x
  2. Step 2: Convert to fraction form
    13,137,500.90/18,138,282 = 11,758,456.46/x
  3. Step 3: Cross multiply
    13,137,500.90x = 18,138,282 × 11,758,456.46
  4. Step 4: Simplify right side
    13,137,500.90x = 213,278,199,156,201.75
  5. Step 5: Solve for x
    x = 213,278,199,156,201.75/13,137,500.90
  6. Step 6: Final answer
    x = 16,234,305.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.