Home / 213,586,234.82-320,391,684.95-82,429,190.90

Finding the Fourth Proportional to 213,586,234.82, 320,391,684.95 and 82,429,190.90

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Solution

The fourth proportional to 213,586,234.82, 320,391,684.95 and 82,429,190.90 is: 123,648,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,586,234.82 : 320,391,684.95 = 82,429,190.90 : x
  2. Step 2: Convert to fraction form
    213,586,234.82/320,391,684.95 = 82,429,190.90/x
  3. Step 3: Cross multiply
    213,586,234.82x = 320,391,684.95 × 82,429,190.90
  4. Step 4: Simplify right side
    213,586,234.82x = 26,409,627,359,502,100
  5. Step 5: Solve for x
    x = 26,409,627,359,502,100/213,586,234.82
  6. Step 6: Final answer
    x = 123,648,545.90

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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.