Home / 20,744,828.80-31,117,243.20-6,561,404.80

Finding the Fourth Proportional to 20,744,828.80, 31,117,243.20 and 6,561,404.80

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Solution

The fourth proportional to 20,744,828.80, 31,117,243.20 and 6,561,404.80 is: 9,842,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744,828.80 : 31,117,243.20 = 6,561,404.80 : x
  2. Step 2: Convert to fraction form
    20,744,828.80/31,117,243.20 = 6,561,404.80/x
  3. Step 3: Cross multiply
    20,744,828.80x = 31,117,243.20 × 6,561,404.80
  4. Step 4: Simplify right side
    20,744,828.80x = 204,172,828,895,247.34
  5. Step 5: Solve for x
    x = 204,172,828,895,247.34/20,744,828.80
  6. Step 6: Final answer
    x = 9,842,107.20

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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.