Home / 287,550,586.20-431,325,879.30-83,085,331.80

Finding the Fourth Proportional to 287,550,586.20, 431,325,879.30 and 83,085,331.80

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Solution

The fourth proportional to 287,550,586.20, 431,325,879.30 and 83,085,331.80 is: 124,627,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,550,586.20 : 431,325,879.30 = 83,085,331.80 : x
  2. Step 2: Convert to fraction form
    287,550,586.20/431,325,879.30 = 83,085,331.80/x
  3. Step 3: Cross multiply
    287,550,586.20x = 431,325,879.30 × 83,085,331.80
  4. Step 4: Simplify right side
    287,550,586.20x = 35,836,853,795,567,252
  5. Step 5: Solve for x
    x = 35,836,853,795,567,252/287,550,586.20
  6. Step 6: Final answer
    x = 124,627,997.70

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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.