Home / 194,018,789.20-291,240,760.20-121,317,660.40

Finding the Fourth Proportional to 194,018,789.20, 291,240,760.20 and 121,317,660.40

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Solution

The fourth proportional to 194,018,789.20, 291,240,760.20 and 121,317,660.40 is: 182,109,412.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,018,789.20 : 291,240,760.20 = 121,317,660.40 : x
  2. Step 2: Convert to fraction form
    194,018,789.20/291,240,760.20 = 121,317,660.40/x
  3. Step 3: Cross multiply
    194,018,789.20x = 291,240,760.20 × 121,317,660.40
  4. Step 4: Simplify right side
    194,018,789.20x = 35,332,647,640,581,436
  5. Step 5: Solve for x
    x = 35,332,647,640,581,436/194,018,789.20
  6. Step 6: Final answer
    x = 182,109,412.12

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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.