Home / 20,539,724.56-28,345,704.84-11,372,366.80

Finding the Fourth Proportional to 20,539,724.56, 28,345,704.84 and 11,372,366.80

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Solution

The fourth proportional to 20,539,724.56, 28,345,704.84 and 11,372,366.80 is: 15,694,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,724.56 : 28,345,704.84 = 11,372,366.80 : x
  2. Step 2: Convert to fraction form
    20,539,724.56/28,345,704.84 = 11,372,366.80/x
  3. Step 3: Cross multiply
    20,539,724.56x = 28,345,704.84 × 11,372,366.80
  4. Step 4: Simplify right side
    20,539,724.56x = 322,357,752,645,015.31
  5. Step 5: Solve for x
    x = 322,357,752,645,015.31/20,539,724.56
  6. Step 6: Final answer
    x = 15,694,356.16

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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.