Home / 422,728,222.60-633,495,137.10-312,694,712.20

Finding the Fourth Proportional to 422,728,222.60, 633,495,137.10 and 312,694,712.20

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Solution

The fourth proportional to 422,728,222.60, 633,495,137.10 and 312,694,712.20 is: 468,600,318.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,728,222.60 : 633,495,137.10 = 312,694,712.20 : x
  2. Step 2: Convert to fraction form
    422,728,222.60/633,495,137.10 = 312,694,712.20/x
  3. Step 3: Cross multiply
    422,728,222.60x = 633,495,137.10 × 312,694,712.20
  4. Step 4: Simplify right side
    422,728,222.60x = 198,090,579,575,584,032
  5. Step 5: Solve for x
    x = 198,090,579,575,584,032/422,728,222.60
  6. Step 6: Final answer
    x = 468,600,318.09

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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.