Home / 431,072,965.92-647,018,244.96-266,813,854.24

Finding the Fourth Proportional to 431,072,965.92, 647,018,244.96 and 266,813,854.24

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Solution

The fourth proportional to 431,072,965.92, 647,018,244.96 and 266,813,854.24 is: 400,473,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,072,965.92 : 647,018,244.96 = 266,813,854.24 : x
  2. Step 2: Convert to fraction form
    431,072,965.92/647,018,244.96 = 266,813,854.24/x
  3. Step 3: Cross multiply
    431,072,965.92x = 647,018,244.96 × 266,813,854.24
  4. Step 4: Simplify right side
    431,072,965.92x = 172,633,431,701,378,080
  5. Step 5: Solve for x
    x = 172,633,431,701,378,080/431,072,965.92
  6. Step 6: Final answer
    x = 400,473,806.87

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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.