Home / 20,769,422.10-31,154,133.15-18,377,937.60

Finding the Fourth Proportional to 20,769,422.10, 31,154,133.15 and 18,377,937.60

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Solution

The fourth proportional to 20,769,422.10, 31,154,133.15 and 18,377,937.60 is: 27,566,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,422.10 : 31,154,133.15 = 18,377,937.60 : x
  2. Step 2: Convert to fraction form
    20,769,422.10/31,154,133.15 = 18,377,937.60/x
  3. Step 3: Cross multiply
    20,769,422.10x = 31,154,133.15 × 18,377,937.60
  4. Step 4: Simplify right side
    20,769,422.10x = 572,548,715,012,791.50
  5. Step 5: Solve for x
    x = 572,548,715,012,791.50/20,769,422.10
  6. Step 6: Final answer
    x = 27,566,906.40

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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.