Home / 12,190,031.92-18,260,685.16-7,329,677.14

Finding the Fourth Proportional to 12,190,031.92, 18,260,685.16 and 7,329,677.14

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Solution

The fourth proportional to 12,190,031.92, 18,260,685.16 and 7,329,677.14 is: 10,979,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190,031.92 : 18,260,685.16 = 7,329,677.14 : x
  2. Step 2: Convert to fraction form
    12,190,031.92/18,260,685.16 = 7,329,677.14/x
  3. Step 3: Cross multiply
    12,190,031.92x = 18,260,685.16 × 7,329,677.14
  4. Step 4: Simplify right side
    12,190,031.92x = 133,844,926,582,490.91
  5. Step 5: Solve for x
    x = 133,844,926,582,490.91/12,190,031.92
  6. Step 6: Final answer
    x = 10,979,866.78

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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.