Home / 128,946,305.70-193,419,458.55-88,131,636.90

Finding the Fourth Proportional to 128,946,305.70, 193,419,458.55 and 88,131,636.90

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Solution

The fourth proportional to 128,946,305.70, 193,419,458.55 and 88,131,636.90 is: 132,197,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,946,305.70 : 193,419,458.55 = 88,131,636.90 : x
  2. Step 2: Convert to fraction form
    128,946,305.70/193,419,458.55 = 88,131,636.90/x
  3. Step 3: Cross multiply
    128,946,305.70x = 193,419,458.55 × 88,131,636.90
  4. Step 4: Simplify right side
    128,946,305.70x = 17,046,373,490,323,202
  5. Step 5: Solve for x
    x = 17,046,373,490,323,202/128,946,305.70
  6. Step 6: Final answer
    x = 132,197,455.35

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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.