Home / 111,217,978.20-166,826,967.30-103,659,706.20

Finding the Fourth Proportional to 111,217,978.20, 166,826,967.30 and 103,659,706.20

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Solution

The fourth proportional to 111,217,978.20, 166,826,967.30 and 103,659,706.20 is: 155,489,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,217,978.20 : 166,826,967.30 = 103,659,706.20 : x
  2. Step 2: Convert to fraction form
    111,217,978.20/166,826,967.30 = 103,659,706.20/x
  3. Step 3: Cross multiply
    111,217,978.20x = 166,826,967.30 × 103,659,706.20
  4. Step 4: Simplify right side
    111,217,978.20x = 17,293,234,416,555,008
  5. Step 5: Solve for x
    x = 17,293,234,416,555,008/111,217,978.20
  6. Step 6: Final answer
    x = 155,489,559.30

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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.