Home / 135,341,778.43-186,766,821.76-76,603,182.41

Finding the Fourth Proportional to 135,341,778.43, 186,766,821.76 and 76,603,182.41

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Solution

The fourth proportional to 135,341,778.43, 186,766,821.76 and 76,603,182.41 is: 105,709,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,341,778.43 : 186,766,821.76 = 76,603,182.41 : x
  2. Step 2: Convert to fraction form
    135,341,778.43/186,766,821.76 = 76,603,182.41/x
  3. Step 3: Cross multiply
    135,341,778.43x = 186,766,821.76 × 76,603,182.41
  4. Step 4: Simplify right side
    135,341,778.43x = 14,306,932,915,034,220
  5. Step 5: Solve for x
    x = 14,306,932,915,034,220/135,341,778.43
  6. Step 6: Final answer
    x = 105,709,656.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.