Home / 83,163,602.72-124,753,959.96-31,391,813.60

Finding the Fourth Proportional to 83,163,602.72, 124,753,959.96 and 31,391,813.60

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Solution

The fourth proportional to 83,163,602.72, 124,753,959.96 and 31,391,813.60 is: 47,090,949.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,163,602.72 : 124,753,959.96 = 31,391,813.60 : x
  2. Step 2: Convert to fraction form
    83,163,602.72/124,753,959.96 = 31,391,813.60/x
  3. Step 3: Cross multiply
    83,163,602.72x = 124,753,959.96 × 31,391,813.60
  4. Step 4: Simplify right side
    83,163,602.72x = 3,916,253,056,926,183.50
  5. Step 5: Solve for x
    x = 3,916,253,056,926,183.50/83,163,602.72
  6. Step 6: Final answer
    x = 47,090,949.99

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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.