Home / 356,778,891.32-492,348,828.97-200,142,635.28

Finding the Fourth Proportional to 356,778,891.32, 492,348,828.97 and 200,142,635.28

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Solution

The fourth proportional to 356,778,891.32, 492,348,828.97 and 200,142,635.28 is: 276,193,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,778,891.32 : 492,348,828.97 = 200,142,635.28 : x
  2. Step 2: Convert to fraction form
    356,778,891.32/492,348,828.97 = 200,142,635.28/x
  3. Step 3: Cross multiply
    356,778,891.32x = 492,348,828.97 × 200,142,635.28
  4. Step 4: Simplify right side
    356,778,891.32x = 98,539,992,105,481,680
  5. Step 5: Solve for x
    x = 98,539,992,105,481,680/356,778,891.32
  6. Step 6: Final answer
    x = 276,193,447.83

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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.