Home / 7,345,387.80-11,018,081.70-3,986,155.80

Finding the Fourth Proportional to 7,345,387.80, 11,018,081.70 and 3,986,155.80

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Solution

The fourth proportional to 7,345,387.80, 11,018,081.70 and 3,986,155.80 is: 5,979,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345,387.80 : 11,018,081.70 = 3,986,155.80 : x
  2. Step 2: Convert to fraction form
    7,345,387.80/11,018,081.70 = 3,986,155.80/x
  3. Step 3: Cross multiply
    7,345,387.80x = 11,018,081.70 × 3,986,155.80
  4. Step 4: Simplify right side
    7,345,387.80x = 43,919,790,273,328.85
  5. Step 5: Solve for x
    x = 43,919,790,273,328.85/7,345,387.80
  6. Step 6: Final answer
    x = 5,979,233.70

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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.