Home / 132,858,496.80-199,287,745.20-81,574,221.60

Finding the Fourth Proportional to 132,858,496.80, 199,287,745.20 and 81,574,221.60

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Solution

The fourth proportional to 132,858,496.80, 199,287,745.20 and 81,574,221.60 is: 122,361,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858,496.80 : 199,287,745.20 = 81,574,221.60 : x
  2. Step 2: Convert to fraction form
    132,858,496.80/199,287,745.20 = 81,574,221.60/x
  3. Step 3: Cross multiply
    132,858,496.80x = 199,287,745.20 × 81,574,221.60
  4. Step 4: Simplify right side
    132,858,496.80x = 16,256,742,689,109,134
  5. Step 5: Solve for x
    x = 16,256,742,689,109,134/132,858,496.80
  6. Step 6: Final answer
    x = 122,361,332.40

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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.