Home / 167,872,530.30-251,808,795.45-99,680,120.70

Finding the Fourth Proportional to 167,872,530.30, 251,808,795.45 and 99,680,120.70

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Solution

The fourth proportional to 167,872,530.30, 251,808,795.45 and 99,680,120.70 is: 149,520,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,872,530.30 : 251,808,795.45 = 99,680,120.70 : x
  2. Step 2: Convert to fraction form
    167,872,530.30/251,808,795.45 = 99,680,120.70/x
  3. Step 3: Cross multiply
    167,872,530.30x = 251,808,795.45 × 99,680,120.70
  4. Step 4: Simplify right side
    167,872,530.30x = 25,100,331,123,777,612
  5. Step 5: Solve for x
    x = 25,100,331,123,777,612/167,872,530.30
  6. Step 6: Final answer
    x = 149,520,181.05

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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.