Home / 34,121,146.20-51,181,719.30-21,207,129.90

Finding the Fourth Proportional to 34,121,146.20, 51,181,719.30 and 21,207,129.90

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Solution

The fourth proportional to 34,121,146.20, 51,181,719.30 and 21,207,129.90 is: 31,810,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,121,146.20 : 51,181,719.30 = 21,207,129.90 : x
  2. Step 2: Convert to fraction form
    34,121,146.20/51,181,719.30 = 21,207,129.90/x
  3. Step 3: Cross multiply
    34,121,146.20x = 51,181,719.30 × 21,207,129.90
  4. Step 4: Simplify right side
    34,121,146.20x = 1,085,417,369,700,436.88
  5. Step 5: Solve for x
    x = 1,085,417,369,700,436.88/34,121,146.20
  6. Step 6: Final answer
    x = 31,810,694.85

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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.