Home / 66,472,590.09-91,747,479.62-38,979,375.69

Finding the Fourth Proportional to 66,472,590.09, 91,747,479.62 and 38,979,375.69

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Solution

The fourth proportional to 66,472,590.09, 91,747,479.62 and 38,979,375.69 is: 53,800,513.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,590.09 : 91,747,479.62 = 38,979,375.69 : x
  2. Step 2: Convert to fraction form
    66,472,590.09/91,747,479.62 = 38,979,375.69/x
  3. Step 3: Cross multiply
    66,472,590.09x = 91,747,479.62 × 38,979,375.69
  4. Step 4: Simplify right side
    66,472,590.09x = 3,576,259,476,718,598.50
  5. Step 5: Solve for x
    x = 3,576,259,476,718,598.50/66,472,590.09
  6. Step 6: Final answer
    x = 53,800,513.44

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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.