Home / 385,595,002.62-578,391,242.36-139,951,310.04

Finding the Fourth Proportional to 385,595,002.62, 578,391,242.36 and 139,951,310.04

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Solution

The fourth proportional to 385,595,002.62, 578,391,242.36 and 139,951,310.04 is: 209,926,507.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,595,002.62 : 578,391,242.36 = 139,951,310.04 : x
  2. Step 2: Convert to fraction form
    385,595,002.62/578,391,242.36 = 139,951,310.04/x
  3. Step 3: Cross multiply
    385,595,002.62x = 578,391,242.36 × 139,951,310.04
  4. Step 4: Simplify right side
    385,595,002.62x = 80,946,612,083,245,376
  5. Step 5: Solve for x
    x = 80,946,612,083,245,376/385,595,002.62
  6. Step 6: Final answer
    x = 209,926,507.17

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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.