Home / 13,480,230.20-20,220,345.30-12,787,388.60

Finding the Fourth Proportional to 13,480,230.20, 20,220,345.30 and 12,787,388.60

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Solution

The fourth proportional to 13,480,230.20, 20,220,345.30 and 12,787,388.60 is: 19,181,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,230.20 : 20,220,345.30 = 12,787,388.60 : x
  2. Step 2: Convert to fraction form
    13,480,230.20/20,220,345.30 = 12,787,388.60/x
  3. Step 3: Cross multiply
    13,480,230.20x = 20,220,345.30 × 12,787,388.60
  4. Step 4: Simplify right side
    13,480,230.20x = 258,565,412,977,283.59
  5. Step 5: Solve for x
    x = 258,565,412,977,283.59/13,480,230.20
  6. Step 6: Final answer
    x = 19,181,082.90

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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.