Home / 205,887,971.79-284,124,372.12-111,801,280.92

Finding the Fourth Proportional to 205,887,971.79, 284,124,372.12 and 111,801,280.92

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Solution

The fourth proportional to 205,887,971.79, 284,124,372.12 and 111,801,280.92 is: 154,285,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,887,971.79 : 284,124,372.12 = 111,801,280.92 : x
  2. Step 2: Convert to fraction form
    205,887,971.79/284,124,372.12 = 111,801,280.92/x
  3. Step 3: Cross multiply
    205,887,971.79x = 284,124,372.12 × 111,801,280.92
  4. Step 4: Simplify right side
    205,887,971.79x = 31,765,468,743,606,736
  5. Step 5: Solve for x
    x = 31,765,468,743,606,736/205,887,971.79
  6. Step 6: Final answer
    x = 154,285,208.93

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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.