Home / 20,487,563.90-28,272,496.68-11,194,929.83

Finding the Fourth Proportional to 20,487,563.90, 28,272,496.68 and 11,194,929.83

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Solution

The fourth proportional to 20,487,563.90, 28,272,496.68 and 11,194,929.83 is: 15,448,816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,563.90 : 28,272,496.68 = 11,194,929.83 : x
  2. Step 2: Convert to fraction form
    20,487,563.90/28,272,496.68 = 11,194,929.83/x
  3. Step 3: Cross multiply
    20,487,563.90x = 28,272,496.68 × 11,194,929.83
  4. Step 4: Simplify right side
    20,487,563.90x = 316,508,616,352,126.44
  5. Step 5: Solve for x
    x = 316,508,616,352,126.44/20,487,563.90
  6. Step 6: Final answer
    x = 15,448,816.55

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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.