Home / 132,856,296.80-199,284,445.20-81,572,021.60

Finding the Fourth Proportional to 132,856,296.80, 199,284,445.20 and 81,572,021.60

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Solution

The fourth proportional to 132,856,296.80, 199,284,445.20 and 81,572,021.60 is: 122,358,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,856,296.80 : 199,284,445.20 = 81,572,021.60 : x
  2. Step 2: Convert to fraction form
    132,856,296.80/199,284,445.20 = 81,572,021.60/x
  3. Step 3: Cross multiply
    132,856,296.80x = 199,284,445.20 × 81,572,021.60
  4. Step 4: Simplify right side
    132,856,296.80x = 16,256,035,068,398,414
  5. Step 5: Solve for x
    x = 16,256,035,068,398,414/132,856,296.80
  6. Step 6: Final answer
    x = 122,358,032.40

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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.