Home / 20,522,494.56-28,308,702.96-13,553,236.24

Finding the Fourth Proportional to 20,522,494.56, 28,308,702.96 and 13,553,236.24

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Solution

The fourth proportional to 20,522,494.56, 28,308,702.96 and 13,553,236.24 is: 18,695,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522,494.56 : 28,308,702.96 = 13,553,236.24 : x
  2. Step 2: Convert to fraction form
    20,522,494.56/28,308,702.96 = 13,553,236.24/x
  3. Step 3: Cross multiply
    20,522,494.56x = 28,308,702.96 × 13,553,236.24
  4. Step 4: Simplify right side
    20,522,494.56x = 383,674,538,864,867.31
  5. Step 5: Solve for x
    x = 383,674,538,864,867.31/20,522,494.56
  6. Step 6: Final answer
    x = 18,695,316.88

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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.