Home / 8,420,647.92-12,632,530.11-2,664,830.22

Finding the Fourth Proportional to 8,420,647.92, 12,632,530.11 and 2,664,830.22

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Solution

The fourth proportional to 8,420,647.92, 12,632,530.11 and 2,664,830.22 is: 3,997,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,647.92 : 12,632,530.11 = 2,664,830.22 : x
  2. Step 2: Convert to fraction form
    8,420,647.92/12,632,530.11 = 2,664,830.22/x
  3. Step 3: Cross multiply
    8,420,647.92x = 12,632,530.11 × 2,664,830.22
  4. Step 4: Simplify right side
    8,420,647.92x = 33,663,547,992,187.93
  5. Step 5: Solve for x
    x = 33,663,547,992,187.93/8,420,647.92
  6. Step 6: Final answer
    x = 3,997,738.45

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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.