Home / 132,840,610.40-199,344,896.40-78,253,090.40

Finding the Fourth Proportional to 132,840,610.40, 199,344,896.40 and 78,253,090.40

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Solution

The fourth proportional to 132,840,610.40, 199,344,896.40 and 78,253,090.40 is: 117,429,106.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,840,610.40 : 199,344,896.40 = 78,253,090.40 : x
  2. Step 2: Convert to fraction form
    132,840,610.40/199,344,896.40 = 78,253,090.40/x
  3. Step 3: Cross multiply
    132,840,610.40x = 199,344,896.40 × 78,253,090.40
  4. Step 4: Simplify right side
    132,840,610.40x = 15,599,354,198,767,836
  5. Step 5: Solve for x
    x = 15,599,354,198,767,836/132,840,610.40
  6. Step 6: Final answer
    x = 117,429,106.59

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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.