Home / 72,279,773.88-99,747,247.11-39,239,996.61

Finding the Fourth Proportional to 72,279,773.88, 99,747,247.11 and 39,239,996.61

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Solution

The fourth proportional to 72,279,773.88, 99,747,247.11 and 39,239,996.61 is: 54,151,824.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,279,773.88 : 99,747,247.11 = 39,239,996.61 : x
  2. Step 2: Convert to fraction form
    72,279,773.88/99,747,247.11 = 39,239,996.61/x
  3. Step 3: Cross multiply
    72,279,773.88x = 99,747,247.11 × 39,239,996.61
  4. Step 4: Simplify right side
    72,279,773.88x = 3,914,081,638,453,232
  5. Step 5: Solve for x
    x = 3,914,081,638,453,232/72,279,773.88
  6. Step 6: Final answer
    x = 54,151,824.62

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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.