Home / 167,502,080.80-251,253,121.20-128,760,031.90

Finding the Fourth Proportional to 167,502,080.80, 251,253,121.20 and 128,760,031.90

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Solution

The fourth proportional to 167,502,080.80, 251,253,121.20 and 128,760,031.90 is: 193,140,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,502,080.80 : 251,253,121.20 = 128,760,031.90 : x
  2. Step 2: Convert to fraction form
    167,502,080.80/251,253,121.20 = 128,760,031.90/x
  3. Step 3: Cross multiply
    167,502,080.80x = 251,253,121.20 × 128,760,031.90
  4. Step 4: Simplify right side
    167,502,080.80x = 32,351,359,900,686,568
  5. Step 5: Solve for x
    x = 32,351,359,900,686,568/167,502,080.80
  6. Step 6: Final answer
    x = 193,140,047.85

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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.