Home / 12,479,929.40-18,723,174.60-3,960,252.20

Finding the Fourth Proportional to 12,479,929.40, 18,723,174.60 and 3,960,252.20

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Solution

The fourth proportional to 12,479,929.40, 18,723,174.60 and 3,960,252.20 is: 5,941,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,929.40 : 18,723,174.60 = 3,960,252.20 : x
  2. Step 2: Convert to fraction form
    12,479,929.40/18,723,174.60 = 3,960,252.20/x
  3. Step 3: Cross multiply
    12,479,929.40x = 18,723,174.60 × 3,960,252.20
  4. Step 4: Simplify right side
    12,479,929.40x = 74,148,493,400,634.12
  5. Step 5: Solve for x
    x = 74,148,493,400,634.12/12,479,929.40
  6. Step 6: Final answer
    x = 5,941,419.30

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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.