Home / 128,952,857.70-193,429,286.55-112,156,697.70

Finding the Fourth Proportional to 128,952,857.70, 193,429,286.55 and 112,156,697.70

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Solution

The fourth proportional to 128,952,857.70, 193,429,286.55 and 112,156,697.70 is: 168,235,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,952,857.70 : 193,429,286.55 = 112,156,697.70 : x
  2. Step 2: Convert to fraction form
    128,952,857.70/193,429,286.55 = 112,156,697.70/x
  3. Step 3: Cross multiply
    128,952,857.70x = 193,429,286.55 × 112,156,697.70
  4. Step 4: Simplify right side
    128,952,857.70x = 21,694,390,017,915,028
  5. Step 5: Solve for x
    x = 21,694,390,017,915,028/128,952,857.70
  6. Step 6: Final answer
    x = 168,235,046.55

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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.