Home / 279,179,415.30-418,769,122.95-156,735,408.90

Finding the Fourth Proportional to 279,179,415.30, 418,769,122.95 and 156,735,408.90

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Solution

The fourth proportional to 279,179,415.30, 418,769,122.95 and 156,735,408.90 is: 235,103,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,179,415.30 : 418,769,122.95 = 156,735,408.90 : x
  2. Step 2: Convert to fraction form
    279,179,415.30/418,769,122.95 = 156,735,408.90/x
  3. Step 3: Cross multiply
    279,179,415.30x = 418,769,122.95 × 156,735,408.90
  4. Step 4: Simplify right side
    279,179,415.30x = 65,635,949,720,262,624
  5. Step 5: Solve for x
    x = 65,635,949,720,262,624/279,179,415.30
  6. Step 6: Final answer
    x = 235,103,113.35

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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.