Home / 18,520,351.38-27,781,964.42-5,565,490.83

Finding the Fourth Proportional to 18,520,351.38, 27,781,964.42 and 5,565,490.83

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Solution

The fourth proportional to 18,520,351.38, 27,781,964.42 and 5,565,490.83 is: 8,348,668.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520,351.38 : 27,781,964.42 = 5,565,490.83 : x
  2. Step 2: Convert to fraction form
    18,520,351.38/27,781,964.42 = 5,565,490.83/x
  3. Step 3: Cross multiply
    18,520,351.38x = 27,781,964.42 × 5,565,490.83
  4. Step 4: Simplify right side
    18,520,351.38x = 154,620,268,191,068.81
  5. Step 5: Solve for x
    x = 154,620,268,191,068.81/18,520,351.38
  6. Step 6: Final answer
    x = 8,348,668.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.