Home / 279,947,625.90-419,921,438.85-85,888,992.30

Finding the Fourth Proportional to 279,947,625.90, 419,921,438.85 and 85,888,992.30

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Solution

The fourth proportional to 279,947,625.90, 419,921,438.85 and 85,888,992.30 is: 128,833,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,947,625.90 : 419,921,438.85 = 85,888,992.30 : x
  2. Step 2: Convert to fraction form
    279,947,625.90/419,921,438.85 = 85,888,992.30/x
  3. Step 3: Cross multiply
    279,947,625.90x = 419,921,438.85 × 85,888,992.30
  4. Step 4: Simplify right side
    279,947,625.90x = 36,066,629,227,992,568
  5. Step 5: Solve for x
    x = 36,066,629,227,992,568/279,947,625.90
  6. Step 6: Final answer
    x = 128,833,488.45

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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.