Home / 129,471,333.89-194,234,994.43-68,878,253.57

Finding the Fourth Proportional to 129,471,333.89, 194,234,994.43 and 68,878,253.57

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Solution

The fourth proportional to 129,471,333.89, 194,234,994.43 and 68,878,253.57 is: 103,332,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,471,333.89 : 194,234,994.43 = 68,878,253.57 : x
  2. Step 2: Convert to fraction form
    129,471,333.89/194,234,994.43 = 68,878,253.57/x
  3. Step 3: Cross multiply
    129,471,333.89x = 194,234,994.43 × 68,878,253.57
  4. Step 4: Simplify right side
    129,471,333.89x = 13,378,567,197,373,708
  5. Step 5: Solve for x
    x = 13,378,567,197,373,708/129,471,333.89
  6. Step 6: Final answer
    x = 103,332,272.84

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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.