Home / 257,515,891.20-385,266,067.20-166,816,627.20

Finding the Fourth Proportional to 257,515,891.20, 385,266,067.20 and 166,816,627.20

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Solution

The fourth proportional to 257,515,891.20, 385,266,067.20 and 166,816,627.20 is: 249,572,116.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,515,891.20 : 385,266,067.20 = 166,816,627.20 : x
  2. Step 2: Convert to fraction form
    257,515,891.20/385,266,067.20 = 166,816,627.20/x
  3. Step 3: Cross multiply
    257,515,891.20x = 385,266,067.20 × 166,816,627.20
  4. Step 4: Simplify right side
    257,515,891.20x = 64,268,785,904,912,544
  5. Step 5: Solve for x
    x = 64,268,785,904,912,544/257,515,891.20
  6. Step 6: Final answer
    x = 249,572,116.13

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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.