Home / 8,208,015.20-12,312,022.80-3,414,111.20

Finding the Fourth Proportional to 8,208,015.20, 12,312,022.80 and 3,414,111.20

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Solution

The fourth proportional to 8,208,015.20, 12,312,022.80 and 3,414,111.20 is: 5,121,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208,015.20 : 12,312,022.80 = 3,414,111.20 : x
  2. Step 2: Convert to fraction form
    8,208,015.20/12,312,022.80 = 3,414,111.20/x
  3. Step 3: Cross multiply
    8,208,015.20x = 12,312,022.80 × 3,414,111.20
  4. Step 4: Simplify right side
    8,208,015.20x = 42,034,614,936,135.37
  5. Step 5: Solve for x
    x = 42,034,614,936,135.37/8,208,015.20
  6. Step 6: Final answer
    x = 5,121,166.80

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Similar ratio
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1.5x scale

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.