Home / 28,512,374.25-42,768,911.25-18,858,781.29

Finding the Fourth Proportional to 28,512,374.25, 42,768,911.25 and 18,858,781.29

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Solution

The fourth proportional to 28,512,374.25, 42,768,911.25 and 18,858,781.29 is: 28,288,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,374.25 : 42,768,911.25 = 18,858,781.29 : x
  2. Step 2: Convert to fraction form
    28,512,374.25/42,768,911.25 = 18,858,781.29/x
  3. Step 3: Cross multiply
    28,512,374.25x = 42,768,911.25 × 18,858,781.29
  4. Step 4: Simplify right side
    28,512,374.25x = 806,569,543,275,170.50
  5. Step 5: Solve for x
    x = 806,569,543,275,170.50/28,512,374.25
  6. Step 6: Final answer
    x = 28,288,403.35

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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.