Home / 7,207,162.57-9,945,885-3,943,977.13

Finding the Fourth Proportional to 7,207,162.57, 9,945,885 and 3,943,977.13

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Solution

The fourth proportional to 7,207,162.57, 9,945,885 and 3,943,977.13 is: 5,442,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207,162.57 : 9,945,885 = 3,943,977.13 : x
  2. Step 2: Convert to fraction form
    7,207,162.57/9,945,885 = 3,943,977.13/x
  3. Step 3: Cross multiply
    7,207,162.57x = 9,945,885 × 3,943,977.13
  4. Step 4: Simplify right side
    7,207,162.57x = 39,226,342,977,610.05
  5. Step 5: Solve for x
    x = 39,226,342,977,610.05/7,207,162.57
  6. Step 6: Final answer
    x = 5,442,688.80

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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.