Home / 8,378,874.96-12,550,874.54-5,331,143.76

Finding the Fourth Proportional to 8,378,874.96, 12,550,874.54 and 5,331,143.76

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Solution

The fourth proportional to 8,378,874.96, 12,550,874.54 and 5,331,143.76 is: 7,985,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,874.96 : 12,550,874.54 = 5,331,143.76 : x
  2. Step 2: Convert to fraction form
    8,378,874.96/12,550,874.54 = 5,331,143.76/x
  3. Step 3: Cross multiply
    8,378,874.96x = 12,550,874.54 × 5,331,143.76
  4. Step 4: Simplify right side
    8,378,874.96x = 66,910,516,459,808.15
  5. Step 5: Solve for x
    x = 66,910,516,459,808.15/8,378,874.96
  6. Step 6: Final answer
    x = 7,985,620.60

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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.