Home / 12,754,808.20-19,132,212.30-7,971,839.20

Finding the Fourth Proportional to 12,754,808.20, 19,132,212.30 and 7,971,839.20

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Solution

The fourth proportional to 12,754,808.20, 19,132,212.30 and 7,971,839.20 is: 11,957,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754,808.20 : 19,132,212.30 = 7,971,839.20 : x
  2. Step 2: Convert to fraction form
    12,754,808.20/19,132,212.30 = 7,971,839.20/x
  3. Step 3: Cross multiply
    12,754,808.20x = 19,132,212.30 × 7,971,839.20
  4. Step 4: Simplify right side
    12,754,808.20x = 152,518,919,995,862.16
  5. Step 5: Solve for x
    x = 152,518,919,995,862.16/12,754,808.20
  6. Step 6: Final answer
    x = 11,957,758.80

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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.