Home / 392,432,115.78-588,734,366.10-116,061,783.40

Finding the Fourth Proportional to 392,432,115.78, 588,734,366.10 and 116,061,783.40

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Solution

The fourth proportional to 392,432,115.78, 588,734,366.10 and 116,061,783.40 is: 174,118,166.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,432,115.78 : 588,734,366.10 = 116,061,783.40 : x
  2. Step 2: Convert to fraction form
    392,432,115.78/588,734,366.10 = 116,061,783.40/x
  3. Step 3: Cross multiply
    392,432,115.78x = 588,734,366.10 × 116,061,783.40
  4. Step 4: Simplify right side
    392,432,115.78x = 68,329,560,479,715,912
  5. Step 5: Solve for x
    x = 68,329,560,479,715,912/392,432,115.78
  6. Step 6: Final answer
    x = 174,118,166.51

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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.