Home / 85,269,399.20-127,876,105.20-31,409,712.80

Finding the Fourth Proportional to 85,269,399.20, 127,876,105.20 and 31,409,712.80

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Solution

The fourth proportional to 85,269,399.20, 127,876,105.20 and 31,409,712.80 is: 47,104,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,269,399.20 : 127,876,105.20 = 31,409,712.80 : x
  2. Step 2: Convert to fraction form
    85,269,399.20/127,876,105.20 = 31,409,712.80/x
  3. Step 3: Cross multiply
    85,269,399.20x = 127,876,105.20 × 31,409,712.80
  4. Step 4: Simplify right side
    85,269,399.20x = 4,016,551,738,314,586.50
  5. Step 5: Solve for x
    x = 4,016,551,738,314,586.50/85,269,399.20
  6. Step 6: Final answer
    x = 47,104,257.52

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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.