Home / 422,728,221.60-633,495,135.60-312,694,711.20

Finding the Fourth Proportional to 422,728,221.60, 633,495,135.60 and 312,694,711.20

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Solution

The fourth proportional to 422,728,221.60, 633,495,135.60 and 312,694,711.20 is: 468,600,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,728,221.60 : 633,495,135.60 = 312,694,711.20 : x
  2. Step 2: Convert to fraction form
    422,728,221.60/633,495,135.60 = 312,694,711.20/x
  3. Step 3: Cross multiply
    422,728,221.60x = 633,495,135.60 × 312,694,711.20
  4. Step 4: Simplify right side
    422,728,221.60x = 198,090,578,473,046,848
  5. Step 5: Solve for x
    x = 198,090,578,473,046,848/422,728,221.60
  6. Step 6: Final answer
    x = 468,600,316.59

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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.