Home / 8,207,998.40-12,311,997.60-3,659,038.40

Finding the Fourth Proportional to 8,207,998.40, 12,311,997.60 and 3,659,038.40

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Solution

The fourth proportional to 8,207,998.40, 12,311,997.60 and 3,659,038.40 is: 5,488,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207,998.40 : 12,311,997.60 = 3,659,038.40 : x
  2. Step 2: Convert to fraction form
    8,207,998.40/12,311,997.60 = 3,659,038.40/x
  3. Step 3: Cross multiply
    8,207,998.40x = 12,311,997.60 × 3,659,038.40
  4. Step 4: Simplify right side
    8,207,998.40x = 45,050,071,999,107.84
  5. Step 5: Solve for x
    x = 45,050,071,999,107.84/8,207,998.40
  6. Step 6: Final answer
    x = 5,488,557.60

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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.