Home / 189,378,407.40-261,522,691.92-179,061,215.46

Finding the Fourth Proportional to 189,378,407.40, 261,522,691.92 and 179,061,215.46

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Solution

The fourth proportional to 189,378,407.40, 261,522,691.92 and 179,061,215.46 is: 247,275,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,378,407.40 : 261,522,691.92 = 179,061,215.46 : x
  2. Step 2: Convert to fraction form
    189,378,407.40/261,522,691.92 = 179,061,215.46/x
  3. Step 3: Cross multiply
    189,378,407.40x = 261,522,691.92 × 179,061,215.46
  4. Step 4: Simplify right side
    189,378,407.40x = 46,828,571,085,566,320
  5. Step 5: Solve for x
    x = 46,828,571,085,566,320/189,378,407.40
  6. Step 6: Final answer
    x = 247,275,134.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.