Home / 20,996,851.28-31,507,677.18-8,865,529.44

Finding the Fourth Proportional to 20,996,851.28, 31,507,677.18 and 8,865,529.44

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Solution

The fourth proportional to 20,996,851.28, 31,507,677.18 and 8,865,529.44 is: 13,303,529.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,851.28 : 31,507,677.18 = 8,865,529.44 : x
  2. Step 2: Convert to fraction form
    20,996,851.28/31,507,677.18 = 8,865,529.44/x
  3. Step 3: Cross multiply
    20,996,851.28x = 31,507,677.18 × 8,865,529.44
  4. Step 4: Simplify right side
    20,996,851.28x = 279,332,239,625,306.16
  5. Step 5: Solve for x
    x = 279,332,239,625,306.16/20,996,851.28
  6. Step 6: Final answer
    x = 13,303,529.94

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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.