Home / 257,256,532.80-385,884,799.20-220,268,239.20

Finding the Fourth Proportional to 257,256,532.80, 385,884,799.20 and 220,268,239.20

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Solution

The fourth proportional to 257,256,532.80, 385,884,799.20 and 220,268,239.20 is: 330,402,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,256,532.80 : 385,884,799.20 = 220,268,239.20 : x
  2. Step 2: Convert to fraction form
    257,256,532.80/385,884,799.20 = 220,268,239.20/x
  3. Step 3: Cross multiply
    257,256,532.80x = 385,884,799.20 × 220,268,239.20
  4. Step 4: Simplify right side
    257,256,532.80x = 84,998,165,253,829,568
  5. Step 5: Solve for x
    x = 84,998,165,253,829,568/257,256,532.80
  6. Step 6: Final answer
    x = 330,402,358.80

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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.