Home / 91,449,015.57-126,199,766.34-49,633,081.45

Finding the Fourth Proportional to 91,449,015.57, 126,199,766.34 and 49,633,081.45

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Solution

The fourth proportional to 91,449,015.57, 126,199,766.34 and 49,633,081.45 is: 68,493,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,449,015.57 : 126,199,766.34 = 49,633,081.45 : x
  2. Step 2: Convert to fraction form
    91,449,015.57/126,199,766.34 = 49,633,081.45/x
  3. Step 3: Cross multiply
    91,449,015.57x = 126,199,766.34 × 49,633,081.45
  4. Step 4: Simplify right side
    91,449,015.57x = 6,263,683,281,408,689
  5. Step 5: Solve for x
    x = 6,263,683,281,408,689/91,449,015.57
  6. Step 6: Final answer
    x = 68,493,720.16

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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.