Home / 20,687,868.20-31,045,799.10-9,322,466.60

Finding the Fourth Proportional to 20,687,868.20, 31,045,799.10 and 9,322,466.60

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Solution

The fourth proportional to 20,687,868.20, 31,045,799.10 and 9,322,466.60 is: 13,990,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,868.20 : 31,045,799.10 = 9,322,466.60 : x
  2. Step 2: Convert to fraction form
    20,687,868.20/31,045,799.10 = 9,322,466.60/x
  3. Step 3: Cross multiply
    20,687,868.20x = 31,045,799.10 × 9,322,466.60
  4. Step 4: Simplify right side
    20,687,868.20x = 289,423,425,180,060.06
  5. Step 5: Solve for x
    x = 289,423,425,180,060.06/20,687,868.20
  6. Step 6: Final answer
    x = 13,990,007.21

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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.