Home / 132,887,947.80-199,331,921.70-81,603,672.60

Finding the Fourth Proportional to 132,887,947.80, 199,331,921.70 and 81,603,672.60

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Solution

The fourth proportional to 132,887,947.80, 199,331,921.70 and 81,603,672.60 is: 122,405,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,887,947.80 : 199,331,921.70 = 81,603,672.60 : x
  2. Step 2: Convert to fraction form
    132,887,947.80/199,331,921.70 = 81,603,672.60/x
  3. Step 3: Cross multiply
    132,887,947.80x = 199,331,921.70 × 81,603,672.60
  4. Step 4: Simplify right side
    132,887,947.80x = 16,266,216,877,135,634
  5. Step 5: Solve for x
    x = 16,266,216,877,135,634/132,887,947.80
  6. Step 6: Final answer
    x = 122,405,508.90

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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.