Home / 87,416,285.03-120,627,220.79-49,729,421.57

Finding the Fourth Proportional to 87,416,285.03, 120,627,220.79 and 49,729,421.57

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Solution

The fourth proportional to 87,416,285.03, 120,627,220.79 and 49,729,421.57 is: 68,622,475.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,416,285.03 : 120,627,220.79 = 49,729,421.57 : x
  2. Step 2: Convert to fraction form
    87,416,285.03/120,627,220.79 = 49,729,421.57/x
  3. Step 3: Cross multiply
    87,416,285.03x = 120,627,220.79 × 49,729,421.57
  4. Step 4: Simplify right side
    87,416,285.03x = 5,998,721,914,631,595
  5. Step 5: Solve for x
    x = 5,998,721,914,631,595/87,416,285.03
  6. Step 6: Final answer
    x = 68,622,475.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.