Home / 128,952,004.20-193,428,006.30-88,137,335.40

Finding the Fourth Proportional to 128,952,004.20, 193,428,006.30 and 88,137,335.40

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Solution

The fourth proportional to 128,952,004.20, 193,428,006.30 and 88,137,335.40 is: 132,206,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,952,004.20 : 193,428,006.30 = 88,137,335.40 : x
  2. Step 2: Convert to fraction form
    128,952,004.20/193,428,006.30 = 88,137,335.40/x
  3. Step 3: Cross multiply
    128,952,004.20x = 193,428,006.30 × 88,137,335.40
  4. Step 4: Simplify right side
    128,952,004.20x = 17,048,229,067,016,416
  5. Step 5: Solve for x
    x = 17,048,229,067,016,416/128,952,004.20
  6. Step 6: Final answer
    x = 132,206,003.10

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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.