Home / 14,014,775.20-21,022,162.80-12,420,452.20

Finding the Fourth Proportional to 14,014,775.20, 21,022,162.80 and 12,420,452.20

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Solution

The fourth proportional to 14,014,775.20, 21,022,162.80 and 12,420,452.20 is: 18,630,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014,775.20 : 21,022,162.80 = 12,420,452.20 : x
  2. Step 2: Convert to fraction form
    14,014,775.20/21,022,162.80 = 12,420,452.20/x
  3. Step 3: Cross multiply
    14,014,775.20x = 21,022,162.80 × 12,420,452.20
  4. Step 4: Simplify right side
    14,014,775.20x = 261,104,768,198,018.16
  5. Step 5: Solve for x
    x = 261,104,768,198,018.16/14,014,775.20
  6. Step 6: Final answer
    x = 18,630,678.30

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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.