Home / 13,179,132.20-19,747,703.10-9,777,909.80

Finding the Fourth Proportional to 13,179,132.20, 19,747,703.10 and 9,777,909.80

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Solution

The fourth proportional to 13,179,132.20, 19,747,703.10 and 9,777,909.80 is: 14,651,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179,132.20 : 19,747,703.10 = 9,777,909.80 : x
  2. Step 2: Convert to fraction form
    13,179,132.20/19,747,703.10 = 9,777,909.80/x
  3. Step 3: Cross multiply
    13,179,132.20x = 19,747,703.10 × 9,777,909.80
  4. Step 4: Simplify right side
    13,179,132.20x = 193,091,259,668,980.41
  5. Step 5: Solve for x
    x = 193,091,259,668,980.41/13,179,132.20
  6. Step 6: Final answer
    x = 14,651,287.86

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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.