Home / 20,915,843.43-28,864,564.86-11,623,805.13

Finding the Fourth Proportional to 20,915,843.43, 28,864,564.86 and 11,623,805.13

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Solution

The fourth proportional to 20,915,843.43, 28,864,564.86 and 11,623,805.13 is: 16,041,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,843.43 : 28,864,564.86 = 11,623,805.13 : x
  2. Step 2: Convert to fraction form
    20,915,843.43/28,864,564.86 = 11,623,805.13/x
  3. Step 3: Cross multiply
    20,915,843.43x = 28,864,564.86 × 11,623,805.13
  4. Step 4: Simplify right side
    20,915,843.43x = 335,516,077,094,885.75
  5. Step 5: Solve for x
    x = 335,516,077,094,885.75/20,915,843.43
  6. Step 6: Final answer
    x = 16,041,240.61

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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.