Home / 20,864,721.16-28,760,057.43-16,447,247.71

Finding the Fourth Proportional to 20,864,721.16, 28,760,057.43 and 16,447,247.71

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Solution

The fourth proportional to 20,864,721.16, 28,760,057.43 and 16,447,247.71 is: 22,670,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,721.16 : 28,760,057.43 = 16,447,247.71 : x
  2. Step 2: Convert to fraction form
    20,864,721.16/28,760,057.43 = 16,447,247.71/x
  3. Step 3: Cross multiply
    20,864,721.16x = 28,760,057.43 × 16,447,247.71
  4. Step 4: Simplify right side
    20,864,721.16x = 473,023,788,705,036
  5. Step 5: Solve for x
    x = 473,023,788,705,036/20,864,721.16
  6. Step 6: Final answer
    x = 22,670,985.40

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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.