Home / 385,595,003.75-578,391,244.04-139,951,311.17

Finding the Fourth Proportional to 385,595,003.75, 578,391,244.04 and 139,951,311.17

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Solution

The fourth proportional to 385,595,003.75, 578,391,244.04 and 139,951,311.17 is: 209,926,508.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,595,003.75 : 578,391,244.04 = 139,951,311.17 : x
  2. Step 2: Convert to fraction form
    385,595,003.75/578,391,244.04 = 139,951,311.17/x
  3. Step 3: Cross multiply
    385,595,003.75x = 578,391,244.04 × 139,951,311.17
  4. Step 4: Simplify right side
    385,595,003.75x = 80,946,612,970,103,360
  5. Step 5: Solve for x
    x = 80,946,612,970,103,360/385,595,003.75
  6. Step 6: Final answer
    x = 209,926,508.86

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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.