Home / 9,728,387.91-13,425,178.23-5,318,132.72

Finding the Fourth Proportional to 9,728,387.91, 13,425,178.23 and 5,318,132.72

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Solution

The fourth proportional to 9,728,387.91, 13,425,178.23 and 5,318,132.72 is: 7,339,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728,387.91 : 13,425,178.23 = 5,318,132.72 : x
  2. Step 2: Convert to fraction form
    9,728,387.91/13,425,178.23 = 5,318,132.72/x
  3. Step 3: Cross multiply
    9,728,387.91x = 13,425,178.23 × 5,318,132.72
  4. Step 4: Simplify right side
    9,728,387.91x = 71,396,879,549,668.80
  5. Step 5: Solve for x
    x = 71,396,879,549,668.80/9,728,387.91
  6. Step 6: Final answer
    x = 7,339,024.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.