Home / 20,514,066.43-28,308,475.20-11,221,503.43

Finding the Fourth Proportional to 20,514,066.43, 28,308,475.20 and 11,221,503.43

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Solution

The fourth proportional to 20,514,066.43, 28,308,475.20 and 11,221,503.43 is: 15,485,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514,066.43 : 28,308,475.20 = 11,221,503.43 : x
  2. Step 2: Convert to fraction form
    20,514,066.43/28,308,475.20 = 11,221,503.43/x
  3. Step 3: Cross multiply
    20,514,066.43x = 28,308,475.20 × 11,221,503.43
  4. Step 4: Simplify right side
    20,514,066.43x = 317,663,651,554,869.94
  5. Step 5: Solve for x
    x = 317,663,651,554,869.94/20,514,066.43
  6. Step 6: Final answer
    x = 15,485,162.47

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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.