Home / 8,420,648.16-12,632,530.47-2,664,830.49

Finding the Fourth Proportional to 8,420,648.16, 12,632,530.47 and 2,664,830.49

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Solution

The fourth proportional to 8,420,648.16, 12,632,530.47 and 2,664,830.49 is: 3,997,738.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,648.16 : 12,632,530.47 = 2,664,830.49 : x
  2. Step 2: Convert to fraction form
    8,420,648.16/12,632,530.47 = 2,664,830.49/x
  3. Step 3: Cross multiply
    8,420,648.16x = 12,632,530.47 × 2,664,830.49
  4. Step 4: Simplify right side
    8,420,648.16x = 33,663,552,362,310.04
  5. Step 5: Solve for x
    x = 33,663,552,362,310.04/8,420,648.16
  6. Step 6: Final answer
    x = 3,997,738.86

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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.