Home / 205,231,618.28-283,216,132.78-111,145,000.71

Finding the Fourth Proportional to 205,231,618.28, 283,216,132.78 and 111,145,000.71

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Solution

The fourth proportional to 205,231,618.28, 283,216,132.78 and 111,145,000.71 is: 153,378,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,231,618.28 : 283,216,132.78 = 111,145,000.71 : x
  2. Step 2: Convert to fraction form
    205,231,618.28/283,216,132.78 = 111,145,000.71/x
  3. Step 3: Cross multiply
    205,231,618.28x = 283,216,132.78 × 111,145,000.71
  4. Step 4: Simplify right side
    205,231,618.28x = 31,478,057,276,944,744
  5. Step 5: Solve for x
    x = 31,478,057,276,944,744/205,231,618.28
  6. Step 6: Final answer
    x = 153,378,205.27

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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.