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Finding the Fourth Proportional to 12,903,941.14, 17,806,761.03 and 7,101,613.87

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Solution

The fourth proportional to 12,903,941.14, 17,806,761.03 and 7,101,613.87 is: 9,799,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903,941.14 : 17,806,761.03 = 7,101,613.87 : x
  2. Step 2: Convert to fraction form
    12,903,941.14/17,806,761.03 = 7,101,613.87/x
  3. Step 3: Cross multiply
    12,903,941.14x = 17,806,761.03 × 7,101,613.87
  4. Step 4: Simplify right side
    12,903,941.14x = 126,456,741,110,423.50
  5. Step 5: Solve for x
    x = 126,456,741,110,423.50/12,903,941.14
  6. Step 6: Final answer
    x = 9,799,854.15

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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.