Home / 512,552,694.40-768,912,815.04-167,406,121.60

Finding the Fourth Proportional to 512,552,694.40, 768,912,815.04 and 167,406,121.60

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Solution

The fourth proportional to 512,552,694.40, 768,912,815.04 and 167,406,121.60 is: 251,136,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,552,694.40 : 768,912,815.04 = 167,406,121.60 : x
  2. Step 2: Convert to fraction form
    512,552,694.40/768,912,815.04 = 167,406,121.60/x
  3. Step 3: Cross multiply
    512,552,694.40x = 768,912,815.04 × 167,406,121.60
  4. Step 4: Simplify right side
    512,552,694.40x = 128,720,712,214,384,544
  5. Step 5: Solve for x
    x = 128,720,712,214,384,544/512,552,694.40
  6. Step 6: Final answer
    x = 251,136,543.85

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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.