Home / 18,721,764.29-28,032,184.14-12,228,760.86

Finding the Fourth Proportional to 18,721,764.29, 28,032,184.14 and 12,228,760.86

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Solution

The fourth proportional to 18,721,764.29, 28,032,184.14 and 12,228,760.86 is: 18,310,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,764.29 : 28,032,184.14 = 12,228,760.86 : x
  2. Step 2: Convert to fraction form
    18,721,764.29/28,032,184.14 = 12,228,760.86/x
  3. Step 3: Cross multiply
    18,721,764.29x = 28,032,184.14 × 12,228,760.86
  4. Step 4: Simplify right side
    18,721,764.29x = 342,798,876,080,566.19
  5. Step 5: Solve for x
    x = 342,798,876,080,566.19/18,721,764.29
  6. Step 6: Final answer
    x = 18,310,180.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.