Home / 12,906,784.95-17,811,082.94-7,105,344.63

Finding the Fourth Proportional to 12,906,784.95, 17,811,082.94 and 7,105,344.63

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Solution

The fourth proportional to 12,906,784.95, 17,811,082.94 and 7,105,344.63 is: 9,805,221.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906,784.95 : 17,811,082.94 = 7,105,344.63 : x
  2. Step 2: Convert to fraction form
    12,906,784.95/17,811,082.94 = 7,105,344.63/x
  3. Step 3: Cross multiply
    12,906,784.95x = 17,811,082.94 × 7,105,344.63
  4. Step 4: Simplify right side
    12,906,784.95x = 126,553,882,486,686.88
  5. Step 5: Solve for x
    x = 126,553,882,486,686.88/12,906,784.95
  6. Step 6: Final answer
    x = 9,805,221.28

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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.