Home / 99,659,820.70-149,489,731.05-90,093,882.70

Finding the Fourth Proportional to 99,659,820.70, 149,489,731.05 and 90,093,882.70

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Solution

The fourth proportional to 99,659,820.70, 149,489,731.05 and 90,093,882.70 is: 135,140,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,659,820.70 : 149,489,731.05 = 90,093,882.70 : x
  2. Step 2: Convert to fraction form
    99,659,820.70/149,489,731.05 = 90,093,882.70/x
  3. Step 3: Cross multiply
    99,659,820.70x = 149,489,731.05 × 90,093,882.70
  4. Step 4: Simplify right side
    99,659,820.70x = 13,468,110,294,073,250
  5. Step 5: Solve for x
    x = 13,468,110,294,073,250/99,659,820.70
  6. Step 6: Final answer
    x = 135,140,824.05

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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.