Home / 3,120,385.90-4,680,578.85-2,772,021.10

Finding the Fourth Proportional to 3,120,385.90, 4,680,578.85 and 2,772,021.10

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Solution

The fourth proportional to 3,120,385.90, 4,680,578.85 and 2,772,021.10 is: 4,158,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,385.90 : 4,680,578.85 = 2,772,021.10 : x
  2. Step 2: Convert to fraction form
    3,120,385.90/4,680,578.85 = 2,772,021.10/x
  3. Step 3: Cross multiply
    3,120,385.90x = 4,680,578.85 × 2,772,021.10
  4. Step 4: Simplify right side
    3,120,385.90x = 12,974,663,332,413.73
  5. Step 5: Solve for x
    x = 12,974,663,332,413.73/3,120,385.90
  6. Step 6: Final answer
    x = 4,158,031.65

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Double scale
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Similar ratio
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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.