Home / 20,781,864.32-28,679,014.32-11,614,506.80

Finding the Fourth Proportional to 20,781,864.32, 28,679,014.32 and 11,614,506.80

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Solution

The fourth proportional to 20,781,864.32, 28,679,014.32 and 11,614,506.80 is: 16,028,042.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,781,864.32 : 28,679,014.32 = 11,614,506.80 : x
  2. Step 2: Convert to fraction form
    20,781,864.32/28,679,014.32 = 11,614,506.80/x
  3. Step 3: Cross multiply
    20,781,864.32x = 28,679,014.32 × 11,614,506.80
  4. Step 4: Simplify right side
    20,781,864.32x = 333,092,606,836,937.38
  5. Step 5: Solve for x
    x = 333,092,606,836,937.38/20,781,864.32
  6. Step 6: Final answer
    x = 16,028,042.61

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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.