Home / 126,176,344.60-189,264,516.90-68,780,716.60

Finding the Fourth Proportional to 126,176,344.60, 189,264,516.90 and 68,780,716.60

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Solution

The fourth proportional to 126,176,344.60, 189,264,516.90 and 68,780,716.60 is: 103,171,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,176,344.60 : 189,264,516.90 = 68,780,716.60 : x
  2. Step 2: Convert to fraction form
    126,176,344.60/189,264,516.90 = 68,780,716.60/x
  3. Step 3: Cross multiply
    126,176,344.60x = 189,264,516.90 × 68,780,716.60
  4. Step 4: Simplify right side
    126,176,344.60x = 13,017,749,099,334,810
  5. Step 5: Solve for x
    x = 13,017,749,099,334,810/126,176,344.60
  6. Step 6: Final answer
    x = 103,171,074.90

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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.