Home / 132,858,342.40-199,287,513.60-81,574,067.20

Finding the Fourth Proportional to 132,858,342.40, 199,287,513.60 and 81,574,067.20

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Solution

The fourth proportional to 132,858,342.40, 199,287,513.60 and 81,574,067.20 is: 122,361,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858,342.40 : 199,287,513.60 = 81,574,067.20 : x
  2. Step 2: Convert to fraction form
    132,858,342.40/199,287,513.60 = 81,574,067.20/x
  3. Step 3: Cross multiply
    132,858,342.40x = 199,287,513.60 × 81,574,067.20
  4. Step 4: Simplify right side
    132,858,342.40x = 16,256,693,026,527,314
  5. Step 5: Solve for x
    x = 16,256,693,026,527,314/132,858,342.40
  6. Step 6: Final answer
    x = 122,361,100.80

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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.