Home / 84,320,999.70-126,481,499.55-69,972,092.70

Finding the Fourth Proportional to 84,320,999.70, 126,481,499.55 and 69,972,092.70

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Solution

The fourth proportional to 84,320,999.70, 126,481,499.55 and 69,972,092.70 is: 104,958,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,320,999.70 : 126,481,499.55 = 69,972,092.70 : x
  2. Step 2: Convert to fraction form
    84,320,999.70/126,481,499.55 = 69,972,092.70/x
  3. Step 3: Cross multiply
    84,320,999.70x = 126,481,499.55 × 69,972,092.70
  4. Step 4: Simplify right side
    84,320,999.70x = 8,850,175,211,347,608
  5. Step 5: Solve for x
    x = 8,850,175,211,347,608/84,320,999.70
  6. Step 6: Final answer
    x = 104,958,139.05

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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.