Home / 20,522,589.59-28,286,657.64-15,559,387.34

Finding the Fourth Proportional to 20,522,589.59, 28,286,657.64 and 15,559,387.34

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Solution

The fourth proportional to 20,522,589.59, 28,286,657.64 and 15,559,387.34 is: 21,445,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522,589.59 : 28,286,657.64 = 15,559,387.34 : x
  2. Step 2: Convert to fraction form
    20,522,589.59/28,286,657.64 = 15,559,387.34/x
  3. Step 3: Cross multiply
    20,522,589.59x = 28,286,657.64 × 15,559,387.34
  4. Step 4: Simplify right side
    20,522,589.59x = 440,123,062,633,297
  5. Step 5: Solve for x
    x = 440,123,062,633,297/20,522,589.59
  6. Step 6: Final answer
    x = 21,445,785.91

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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.