Home / 20,704,481.97-28,572,298.47-12,007,810.86

Finding the Fourth Proportional to 20,704,481.97, 28,572,298.47 and 12,007,810.86

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Solution

The fourth proportional to 20,704,481.97, 28,572,298.47 and 12,007,810.86 is: 16,570,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,481.97 : 28,572,298.47 = 12,007,810.86 : x
  2. Step 2: Convert to fraction form
    20,704,481.97/28,572,298.47 = 12,007,810.86/x
  3. Step 3: Cross multiply
    20,704,481.97x = 28,572,298.47 × 12,007,810.86
  4. Step 4: Simplify right side
    20,704,481.97x = 343,090,755,863,227.38
  5. Step 5: Solve for x
    x = 343,090,755,863,227.38/20,704,481.97
  6. Step 6: Final answer
    x = 16,570,844.73

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1.5x scale

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.