Home / 20,760,691.05-28,649,198.35-11,468,061.12

Finding the Fourth Proportional to 20,760,691.05, 28,649,198.35 and 11,468,061.12

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Solution

The fourth proportional to 20,760,691.05, 28,649,198.35 and 11,468,061.12 is: 15,825,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,691.05 : 28,649,198.35 = 11,468,061.12 : x
  2. Step 2: Convert to fraction form
    20,760,691.05/28,649,198.35 = 11,468,061.12/x
  3. Step 3: Cross multiply
    20,760,691.05x = 28,649,198.35 × 11,468,061.12
  4. Step 4: Simplify right side
    20,760,691.05x = 328,550,757,688,133
  5. Step 5: Solve for x
    x = 328,550,757,688,133/20,760,691.05
  6. Step 6: Final answer
    x = 15,825,617.60

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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.