Home / 83,163,601.72-124,753,958.46-31,391,812.60

Finding the Fourth Proportional to 83,163,601.72, 124,753,958.46 and 31,391,812.60

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Solution

The fourth proportional to 83,163,601.72, 124,753,958.46 and 31,391,812.60 is: 47,090,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,163,601.72 : 124,753,958.46 = 31,391,812.60 : x
  2. Step 2: Convert to fraction form
    83,163,601.72/124,753,958.46 = 31,391,812.60/x
  3. Step 3: Cross multiply
    83,163,601.72x = 124,753,958.46 × 31,391,812.60
  4. Step 4: Simplify right side
    83,163,601.72x = 3,916,252,885,084,504.50
  5. Step 5: Solve for x
    x = 3,916,252,885,084,504.50/83,163,601.72
  6. Step 6: Final answer
    x = 47,090,948.49

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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.