Home / 247,434,830.30-371,152,245.45-85,876,766.30

Finding the Fourth Proportional to 247,434,830.30, 371,152,245.45 and 85,876,766.30

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Solution

The fourth proportional to 247,434,830.30, 371,152,245.45 and 85,876,766.30 is: 128,815,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,434,830.30 : 371,152,245.45 = 85,876,766.30 : x
  2. Step 2: Convert to fraction form
    247,434,830.30/371,152,245.45 = 85,876,766.30/x
  3. Step 3: Cross multiply
    247,434,830.30x = 371,152,245.45 × 85,876,766.30
  4. Step 4: Simplify right side
    247,434,830.30x = 31,873,354,644,229,888
  5. Step 5: Solve for x
    x = 31,873,354,644,229,888/247,434,830.30
  6. Step 6: Final answer
    x = 128,815,149.45

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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.