Home / 12,910,613.69-17,816,645.18-7,109,381.14

Finding the Fourth Proportional to 12,910,613.69, 17,816,645.18 and 7,109,381.14

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Solution

The fourth proportional to 12,910,613.69, 17,816,645.18 and 7,109,381.14 is: 9,810,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910,613.69 : 17,816,645.18 = 7,109,381.14 : x
  2. Step 2: Convert to fraction form
    12,910,613.69/17,816,645.18 = 7,109,381.14/x
  3. Step 3: Cross multiply
    12,910,613.69x = 17,816,645.18 × 7,109,381.14
  4. Step 4: Simplify right side
    12,910,613.69x = 126,665,321,193,995.75
  5. Step 5: Solve for x
    x = 126,665,321,193,995.75/12,910,613.69
  6. Step 6: Final answer
    x = 9,810,945.03

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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.