Home / 108,278,049.20-162,417,073.80-82,768,881.20

Finding the Fourth Proportional to 108,278,049.20, 162,417,073.80 and 82,768,881.20

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Solution

The fourth proportional to 108,278,049.20, 162,417,073.80 and 82,768,881.20 is: 124,153,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,278,049.20 : 162,417,073.80 = 82,768,881.20 : x
  2. Step 2: Convert to fraction form
    108,278,049.20/162,417,073.80 = 82,768,881.20/x
  3. Step 3: Cross multiply
    108,278,049.20x = 162,417,073.80 × 82,768,881.20
  4. Step 4: Simplify right side
    108,278,049.20x = 13,443,079,486,203,834
  5. Step 5: Solve for x
    x = 13,443,079,486,203,834/108,278,049.20
  6. Step 6: Final answer
    x = 124,153,321.80

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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.