Home / 20,477,486.80-30,716,230.20-18,422,581.60

Finding the Fourth Proportional to 20,477,486.80, 30,716,230.20 and 18,422,581.60

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Solution

The fourth proportional to 20,477,486.80, 30,716,230.20 and 18,422,581.60 is: 27,633,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477,486.80 : 30,716,230.20 = 18,422,581.60 : x
  2. Step 2: Convert to fraction form
    20,477,486.80/30,716,230.20 = 18,422,581.60/x
  3. Step 3: Cross multiply
    20,477,486.80x = 30,716,230.20 × 18,422,581.60
  4. Step 4: Simplify right side
    20,477,486.80x = 565,872,257,303,884.38
  5. Step 5: Solve for x
    x = 565,872,257,303,884.38/20,477,486.80
  6. Step 6: Final answer
    x = 27,633,872.40

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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.