Home / 12,949,545.20-19,440,064.20-6,556,506.80

Finding the Fourth Proportional to 12,949,545.20, 19,440,064.20 and 6,556,506.80

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Solution

The fourth proportional to 12,949,545.20, 19,440,064.20 and 6,556,506.80 is: 9,842,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,545.20 : 19,440,064.20 = 6,556,506.80 : x
  2. Step 2: Convert to fraction form
    12,949,545.20/19,440,064.20 = 6,556,506.80/x
  3. Step 3: Cross multiply
    12,949,545.20x = 19,440,064.20 × 6,556,506.80
  4. Step 4: Simplify right side
    12,949,545.20x = 127,458,913,119,736.55
  5. Step 5: Solve for x
    x = 127,458,913,119,736.55/12,949,545.20
  6. Step 6: Final answer
    x = 9,842,732.79

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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.