Home / 12,143,082.60-18,209,094.30-5,408,029.80

Finding the Fourth Proportional to 12,143,082.60, 18,209,094.30 and 5,408,029.80

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Solution

The fourth proportional to 12,143,082.60, 18,209,094.30 and 5,408,029.80 is: 8,109,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,082.60 : 18,209,094.30 = 5,408,029.80 : x
  2. Step 2: Convert to fraction form
    12,143,082.60/18,209,094.30 = 5,408,029.80/x
  3. Step 3: Cross multiply
    12,143,082.60x = 18,209,094.30 × 5,408,029.80
  4. Step 4: Simplify right side
    12,143,082.60x = 98,475,324,605,410.14
  5. Step 5: Solve for x
    x = 98,475,324,605,410.14/12,143,082.60
  6. Step 6: Final answer
    x = 8,109,582.04

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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.