Home / 408,237,084.91-612,353,874.12-113,131,357.17

Finding the Fourth Proportional to 408,237,084.91, 612,353,874.12 and 113,131,357.17

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Solution

The fourth proportional to 408,237,084.91, 612,353,874.12 and 113,131,357.17 is: 169,696,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,237,084.91 : 612,353,874.12 = 113,131,357.17 : x
  2. Step 2: Convert to fraction form
    408,237,084.91/612,353,874.12 = 113,131,357.17/x
  3. Step 3: Cross multiply
    408,237,084.91x = 612,353,874.12 × 113,131,357.17
  4. Step 4: Simplify right side
    408,237,084.91x = 69,276,424,848,866,864
  5. Step 5: Solve for x
    x = 69,276,424,848,866,864/408,237,084.91
  6. Step 6: Final answer
    x = 169,696,549.90

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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.