Home / 84,248,691.20-126,373,036.80-69,887,974.40

Finding the Fourth Proportional to 84,248,691.20, 126,373,036.80 and 69,887,974.40

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Solution

The fourth proportional to 84,248,691.20, 126,373,036.80 and 69,887,974.40 is: 104,831,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,691.20 : 126,373,036.80 = 69,887,974.40 : x
  2. Step 2: Convert to fraction form
    84,248,691.20/126,373,036.80 = 69,887,974.40/x
  3. Step 3: Cross multiply
    84,248,691.20x = 126,373,036.80 × 69,887,974.40
  4. Step 4: Simplify right side
    84,248,691.20x = 8,831,955,560,728,658
  5. Step 5: Solve for x
    x = 8,831,955,560,728,658/84,248,691.20
  6. Step 6: Final answer
    x = 104,831,961.60

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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.