Home / 20,785,666.80-31,161,911.40-8,808,553.20

Finding the Fourth Proportional to 20,785,666.80, 31,161,911.40 and 8,808,553.20

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Solution

The fourth proportional to 20,785,666.80, 31,161,911.40 and 8,808,553.20 is: 13,205,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,666.80 : 31,161,911.40 = 8,808,553.20 : x
  2. Step 2: Convert to fraction form
    20,785,666.80/31,161,911.40 = 8,808,553.20/x
  3. Step 3: Cross multiply
    20,785,666.80x = 31,161,911.40 × 8,808,553.20
  4. Step 4: Simplify right side
    20,785,666.80x = 274,491,354,380,586.44
  5. Step 5: Solve for x
    x = 274,491,354,380,586.44/20,785,666.80
  6. Step 6: Final answer
    x = 13,205,799.80

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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.