Home / 128,488,640.40-192,499,126.56-114,713,689.68

Finding the Fourth Proportional to 128,488,640.40, 192,499,126.56 and 114,713,689.68

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Solution

The fourth proportional to 128,488,640.40, 192,499,126.56 and 114,713,689.68 is: 171,861,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,488,640.40 : 192,499,126.56 = 114,713,689.68 : x
  2. Step 2: Convert to fraction form
    128,488,640.40/192,499,126.56 = 114,713,689.68/x
  3. Step 3: Cross multiply
    128,488,640.40x = 192,499,126.56 × 114,713,689.68
  4. Step 4: Simplify right side
    128,488,640.40x = 22,082,285,067,874,888
  5. Step 5: Solve for x
    x = 22,082,285,067,874,888/128,488,640.40
  6. Step 6: Final answer
    x = 171,861,769.25

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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.