Home / 398,835,686.97-550,485,081.03-233,876,400.57

Finding the Fourth Proportional to 398,835,686.97, 550,485,081.03 and 233,876,400.57

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Solution

The fourth proportional to 398,835,686.97, 550,485,081.03 and 233,876,400.57 is: 322,803,283.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,835,686.97 : 550,485,081.03 = 233,876,400.57 : x
  2. Step 2: Convert to fraction form
    398,835,686.97/550,485,081.03 = 233,876,400.57/x
  3. Step 3: Cross multiply
    398,835,686.97x = 550,485,081.03 × 233,876,400.57
  4. Step 4: Simplify right side
    398,835,686.97x = 128,745,469,318,781,184
  5. Step 5: Solve for x
    x = 128,745,469,318,781,184/398,835,686.97
  6. Step 6: Final answer
    x = 322,803,283.47

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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.