Home / 12,931,456.11-19,395,924.66-5,255,561.17

Finding the Fourth Proportional to 12,931,456.11, 19,395,924.66 and 5,255,561.17

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Solution

The fourth proportional to 12,931,456.11, 19,395,924.66 and 5,255,561.17 is: 7,882,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,456.11 : 19,395,924.66 = 5,255,561.17 : x
  2. Step 2: Convert to fraction form
    12,931,456.11/19,395,924.66 = 5,255,561.17/x
  3. Step 3: Cross multiply
    12,931,456.11x = 19,395,924.66 × 5,255,561.17
  4. Step 4: Simplify right side
    12,931,456.11x = 101,936,468,523,586.36
  5. Step 5: Solve for x
    x = 101,936,468,523,586.36/12,931,456.11
  6. Step 6: Final answer
    x = 7,882,829.88

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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.