Home / 20,548,343.64-28,356,922.62-12,398,007

Finding the Fourth Proportional to 20,548,343.64, 28,356,922.62 and 12,398,007

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Solution

The fourth proportional to 20,548,343.64, 28,356,922.62 and 12,398,007 is: 17,109,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548,343.64 : 28,356,922.62 = 12,398,007 : x
  2. Step 2: Convert to fraction form
    20,548,343.64/28,356,922.62 = 12,398,007/x
  3. Step 3: Cross multiply
    20,548,343.64x = 28,356,922.62 × 12,398,007
  4. Step 4: Simplify right side
    20,548,343.64x = 351,569,325,141,218.38
  5. Step 5: Solve for x
    x = 351,569,325,141,218.38/20,548,343.64
  6. Step 6: Final answer
    x = 17,109,375.40

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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.