Home / 398,835,687.47-550,485,081.72-233,876,401.07

Finding the Fourth Proportional to 398,835,687.47, 550,485,081.72 and 233,876,401.07

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Solution

The fourth proportional to 398,835,687.47, 550,485,081.72 and 233,876,401.07 is: 322,803,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,835,687.47 : 550,485,081.72 = 233,876,401.07 : x
  2. Step 2: Convert to fraction form
    398,835,687.47/550,485,081.72 = 233,876,401.07/x
  3. Step 3: Cross multiply
    398,835,687.47x = 550,485,081.72 × 233,876,401.07
  4. Step 4: Simplify right side
    398,835,687.47x = 128,745,469,755,398,448
  5. Step 5: Solve for x
    x = 128,745,469,755,398,448/398,835,687.47
  6. Step 6: Final answer
    x = 322,803,284.16

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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.