Home / 20,845,084.32-31,271,800.92-7,198,729.20

Finding the Fourth Proportional to 20,845,084.32, 31,271,800.92 and 7,198,729.20

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Solution

The fourth proportional to 20,845,084.32, 31,271,800.92 and 7,198,729.20 is: 10,799,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845,084.32 : 31,271,800.92 = 7,198,729.20 : x
  2. Step 2: Convert to fraction form
    20,845,084.32/31,271,800.92 = 7,198,729.20/x
  3. Step 3: Cross multiply
    20,845,084.32x = 31,271,800.92 × 7,198,729.20
  4. Step 4: Simplify right side
    20,845,084.32x = 225,117,226,392,395.66
  5. Step 5: Solve for x
    x = 225,117,226,392,395.66/20,845,084.32
  6. Step 6: Final answer
    x = 10,799,535.42

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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.