Home / 129,359,840.80-194,039,761.20-61,335,392.80

Finding the Fourth Proportional to 129,359,840.80, 194,039,761.20 and 61,335,392.80

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Solution

The fourth proportional to 129,359,840.80, 194,039,761.20 and 61,335,392.80 is: 92,003,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,359,840.80 : 194,039,761.20 = 61,335,392.80 : x
  2. Step 2: Convert to fraction form
    129,359,840.80/194,039,761.20 = 61,335,392.80/x
  3. Step 3: Cross multiply
    129,359,840.80x = 194,039,761.20 × 61,335,392.80
  4. Step 4: Simplify right side
    129,359,840.80x = 11,901,504,972,020,198
  5. Step 5: Solve for x
    x = 11,901,504,972,020,198/129,359,840.80
  6. Step 6: Final answer
    x = 92,003,089.20

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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.