Home / 14,985,329.13-20,679,713.49-8,109,811.20

Finding the Fourth Proportional to 14,985,329.13, 20,679,713.49 and 8,109,811.20

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Solution

The fourth proportional to 14,985,329.13, 20,679,713.49 and 8,109,811.20 is: 11,191,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985,329.13 : 20,679,713.49 = 8,109,811.20 : x
  2. Step 2: Convert to fraction form
    14,985,329.13/20,679,713.49 = 8,109,811.20/x
  3. Step 3: Cross multiply
    14,985,329.13x = 20,679,713.49 × 8,109,811.20
  4. Step 4: Simplify right side
    14,985,329.13x = 167,708,572,073,993.09
  5. Step 5: Solve for x
    x = 167,708,572,073,993.09/14,985,329.13
  6. Step 6: Final answer
    x = 11,191,517.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.