Home / 20,822,076.80-31,191,643.20-18,328,227.20

Finding the Fourth Proportional to 20,822,076.80, 31,191,643.20 and 18,328,227.20

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Solution

The fourth proportional to 20,822,076.80, 31,191,643.20 and 18,328,227.20 is: 27,455,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822,076.80 : 31,191,643.20 = 18,328,227.20 : x
  2. Step 2: Convert to fraction form
    20,822,076.80/31,191,643.20 = 18,328,227.20/x
  3. Step 3: Cross multiply
    20,822,076.80x = 31,191,643.20 × 18,328,227.20
  4. Step 4: Simplify right side
    20,822,076.80x = 571,687,523,310,935
  5. Step 5: Solve for x
    x = 571,687,523,310,935/20,822,076.80
  6. Step 6: Final answer
    x = 27,455,835.88

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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.