Home / 20,864,731.26-28,760,071.29-16,447,257.78

Finding the Fourth Proportional to 20,864,731.26, 28,760,071.29 and 16,447,257.78

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Solution

The fourth proportional to 20,864,731.26, 28,760,071.29 and 16,447,257.78 is: 22,670,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,731.26 : 28,760,071.29 = 16,447,257.78 : x
  2. Step 2: Convert to fraction form
    20,864,731.26/28,760,071.29 = 16,447,257.78/x
  3. Step 3: Cross multiply
    20,864,731.26x = 28,760,071.29 × 16,447,257.78
  4. Step 4: Simplify right side
    20,864,731.26x = 473,024,306,277,807.12
  5. Step 5: Solve for x
    x = 473,024,306,277,807.12/20,864,731.26
  6. Step 6: Final answer
    x = 22,670,999.23

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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.