Home / 15,189,897.68-20,962,189.52-8,663,857.70

Finding the Fourth Proportional to 15,189,897.68, 20,962,189.52 and 8,663,857.70

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Solution

The fourth proportional to 15,189,897.68, 20,962,189.52 and 8,663,857.70 is: 11,956,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,897.68 : 20,962,189.52 = 8,663,857.70 : x
  2. Step 2: Convert to fraction form
    15,189,897.68/20,962,189.52 = 8,663,857.70/x
  3. Step 3: Cross multiply
    15,189,897.68x = 20,962,189.52 × 8,663,857.70
  4. Step 4: Simplify right side
    15,189,897.68x = 181,613,427,081,711.28
  5. Step 5: Solve for x
    x = 181,613,427,081,711.28/15,189,897.68
  6. Step 6: Final answer
    x = 11,956,198.19

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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.