Home / 20,539,714.56-28,345,691.04-11,372,356.80

Finding the Fourth Proportional to 20,539,714.56, 28,345,691.04 and 11,372,356.80

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Solution

The fourth proportional to 20,539,714.56, 28,345,691.04 and 11,372,356.80 is: 15,694,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,714.56 : 28,345,691.04 = 11,372,356.80 : x
  2. Step 2: Convert to fraction form
    20,539,714.56/28,345,691.04 = 11,372,356.80/x
  3. Step 3: Cross multiply
    20,539,714.56x = 28,345,691.04 × 11,372,356.80
  4. Step 4: Simplify right side
    20,539,714.56x = 322,357,312,249,443.06
  5. Step 5: Solve for x
    x = 322,357,312,249,443.06/20,539,714.56
  6. Step 6: Final answer
    x = 15,694,342.36

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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.