Home / 253,286,872.80-379,930,309.20-132,102,578.40

Finding the Fourth Proportional to 253,286,872.80, 379,930,309.20 and 132,102,578.40

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Solution

The fourth proportional to 253,286,872.80, 379,930,309.20 and 132,102,578.40 is: 198,153,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,286,872.80 : 379,930,309.20 = 132,102,578.40 : x
  2. Step 2: Convert to fraction form
    253,286,872.80/379,930,309.20 = 132,102,578.40/x
  3. Step 3: Cross multiply
    253,286,872.80x = 379,930,309.20 × 132,102,578.40
  4. Step 4: Simplify right side
    253,286,872.80x = 50,189,773,457,629,240
  5. Step 5: Solve for x
    x = 50,189,773,457,629,240/253,286,872.80
  6. Step 6: Final answer
    x = 198,153,867.60

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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.