Home / 422,504,299.77-633,309,153-142,118,291.70

Finding the Fourth Proportional to 422,504,299.77, 633,309,153 and 142,118,291.70

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Solution

The fourth proportional to 422,504,299.77, 633,309,153 and 142,118,291.70 is: 213,026,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,504,299.77 : 633,309,153 = 142,118,291.70 : x
  2. Step 2: Convert to fraction form
    422,504,299.77/633,309,153 = 142,118,291.70/x
  3. Step 3: Cross multiply
    422,504,299.77x = 633,309,153 × 142,118,291.70
  4. Step 4: Simplify right side
    422,504,299.77x = 90,004,814,942,333,920
  5. Step 5: Solve for x
    x = 90,004,814,942,333,920/422,504,299.77
  6. Step 6: Final answer
    x = 213,026,979.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.