Home / 124,448,008.20-186,672,012.30-81,449,838.60

Finding the Fourth Proportional to 124,448,008.20, 186,672,012.30 and 81,449,838.60

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Solution

The fourth proportional to 124,448,008.20, 186,672,012.30 and 81,449,838.60 is: 122,174,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,448,008.20 : 186,672,012.30 = 81,449,838.60 : x
  2. Step 2: Convert to fraction form
    124,448,008.20/186,672,012.30 = 81,449,838.60/x
  3. Step 3: Cross multiply
    124,448,008.20x = 186,672,012.30 × 81,449,838.60
  4. Step 4: Simplify right side
    124,448,008.20x = 15,204,405,272,972,214
  5. Step 5: Solve for x
    x = 15,204,405,272,972,214/124,448,008.20
  6. Step 6: Final answer
    x = 122,174,757.90

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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.