Home / 21,530,883.60-32,259,765.40-12,993,280.40

Finding the Fourth Proportional to 21,530,883.60, 32,259,765.40 and 12,993,280.40

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Solution

The fourth proportional to 21,530,883.60, 32,259,765.40 and 12,993,280.40 is: 19,467,857.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530,883.60 : 32,259,765.40 = 12,993,280.40 : x
  2. Step 2: Convert to fraction form
    21,530,883.60/32,259,765.40 = 12,993,280.40/x
  3. Step 3: Cross multiply
    21,530,883.60x = 32,259,765.40 × 12,993,280.40
  4. Step 4: Simplify right side
    21,530,883.60x = 419,160,177,480,418.12
  5. Step 5: Solve for x
    x = 419,160,177,480,418.12/21,530,883.60
  6. Step 6: Final answer
    x = 19,467,857.67

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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.