Home / 279,935,999.10-419,903,998.65-143,635,160.70

Finding the Fourth Proportional to 279,935,999.10, 419,903,998.65 and 143,635,160.70

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Solution

The fourth proportional to 279,935,999.10, 419,903,998.65 and 143,635,160.70 is: 215,452,741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,935,999.10 : 419,903,998.65 = 143,635,160.70 : x
  2. Step 2: Convert to fraction form
    279,935,999.10/419,903,998.65 = 143,635,160.70/x
  3. Step 3: Cross multiply
    279,935,999.10x = 419,903,998.65 × 143,635,160.70
  4. Step 4: Simplify right side
    279,935,999.10x = 60,312,978,324,665,328
  5. Step 5: Solve for x
    x = 60,312,978,324,665,328/279,935,999.10
  6. Step 6: Final answer
    x = 215,452,741.05

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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.