Home / 10,500,916.80-15,719,882.40-6,238,891.20

Finding the Fourth Proportional to 10,500,916.80, 15,719,882.40 and 6,238,891.20

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Solution

The fourth proportional to 10,500,916.80, 15,719,882.40 and 6,238,891.20 is: 9,339,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500,916.80 : 15,719,882.40 = 6,238,891.20 : x
  2. Step 2: Convert to fraction form
    10,500,916.80/15,719,882.40 = 6,238,891.20/x
  3. Step 3: Cross multiply
    10,500,916.80x = 15,719,882.40 × 6,238,891.20
  4. Step 4: Simplify right side
    10,500,916.80x = 98,074,635,970,394.89
  5. Step 5: Solve for x
    x = 98,074,635,970,394.89/10,500,916.80
  6. Step 6: Final answer
    x = 9,339,626.04

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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.