Home / 129,431,724.40-194,147,586.60-43,172,945.20

Finding the Fourth Proportional to 129,431,724.40, 194,147,586.60 and 43,172,945.20

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Solution

The fourth proportional to 129,431,724.40, 194,147,586.60 and 43,172,945.20 is: 64,759,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,431,724.40 : 194,147,586.60 = 43,172,945.20 : x
  2. Step 2: Convert to fraction form
    129,431,724.40/194,147,586.60 = 43,172,945.20/x
  3. Step 3: Cross multiply
    129,431,724.40x = 194,147,586.60 × 43,172,945.20
  4. Step 4: Simplify right side
    129,431,724.40x = 8,381,923,116,994,055
  5. Step 5: Solve for x
    x = 8,381,923,116,994,055/129,431,724.40
  6. Step 6: Final answer
    x = 64,759,417.80

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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.