Home / 8,220,999.10-12,331,498.65-2,155,719.10

Finding the Fourth Proportional to 8,220,999.10, 12,331,498.65 and 2,155,719.10

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Solution

The fourth proportional to 8,220,999.10, 12,331,498.65 and 2,155,719.10 is: 3,233,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220,999.10 : 12,331,498.65 = 2,155,719.10 : x
  2. Step 2: Convert to fraction form
    8,220,999.10/12,331,498.65 = 2,155,719.10/x
  3. Step 3: Cross multiply
    8,220,999.10x = 12,331,498.65 × 2,155,719.10
  4. Step 4: Simplify right side
    8,220,999.10x = 26,583,247,171,429.22
  5. Step 5: Solve for x
    x = 26,583,247,171,429.22/8,220,999.10
  6. Step 6: Final answer
    x = 3,233,578.65

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Double scale
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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.