Home / 20,680,014.52-28,538,420-11,387,562.44

Finding the Fourth Proportional to 20,680,014.52, 28,538,420 and 11,387,562.44

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Solution

The fourth proportional to 20,680,014.52, 28,538,420 and 11,387,562.44 is: 15,714,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680,014.52 : 28,538,420 = 11,387,562.44 : x
  2. Step 2: Convert to fraction form
    20,680,014.52/28,538,420 = 11,387,562.44/x
  3. Step 3: Cross multiply
    20,680,014.52x = 28,538,420 × 11,387,562.44
  4. Step 4: Simplify right side
    20,680,014.52x = 324,983,039,688,944.81
  5. Step 5: Solve for x
    x = 324,983,039,688,944.81/20,680,014.52
  6. Step 6: Final answer
    x = 15,714,836.15

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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.