Home / 20,487,564.43-28,272,497.42-11,194,930.36

Finding the Fourth Proportional to 20,487,564.43, 28,272,497.42 and 11,194,930.36

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Solution

The fourth proportional to 20,487,564.43, 28,272,497.42 and 11,194,930.36 is: 15,448,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,564.43 : 28,272,497.42 = 11,194,930.36 : x
  2. Step 2: Convert to fraction form
    20,487,564.43/28,272,497.42 = 11,194,930.36/x
  3. Step 3: Cross multiply
    20,487,564.43x = 28,272,497.42 × 11,194,930.36
  4. Step 4: Simplify right side
    20,487,564.43x = 316,508,639,522,842.56
  5. Step 5: Solve for x
    x = 316,508,639,522,842.56/20,487,564.43
  6. Step 6: Final answer
    x = 15,448,817.28

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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.