Home / 5,187,385.50-7,781,451.46-1,992,511.82

Finding the Fourth Proportional to 5,187,385.50, 7,781,451.46 and 1,992,511.82

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Solution

The fourth proportional to 5,187,385.50, 7,781,451.46 and 1,992,511.82 is: 2,988,911.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,385.50 : 7,781,451.46 = 1,992,511.82 : x
  2. Step 2: Convert to fraction form
    5,187,385.50/7,781,451.46 = 1,992,511.82/x
  3. Step 3: Cross multiply
    5,187,385.50x = 7,781,451.46 × 1,992,511.82
  4. Step 4: Simplify right side
    5,187,385.50x = 15,504,634,010,806.26
  5. Step 5: Solve for x
    x = 15,504,634,010,806.26/5,187,385.50
  6. Step 6: Final answer
    x = 2,988,911.08

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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.