Home / 30,284,919.20-45,427,378.80-21,747,216.80

Finding the Fourth Proportional to 30,284,919.20, 45,427,378.80 and 21,747,216.80

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Solution

The fourth proportional to 30,284,919.20, 45,427,378.80 and 21,747,216.80 is: 32,620,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,284,919.20 : 45,427,378.80 = 21,747,216.80 : x
  2. Step 2: Convert to fraction form
    30,284,919.20/45,427,378.80 = 21,747,216.80/x
  3. Step 3: Cross multiply
    30,284,919.20x = 45,427,378.80 × 21,747,216.80
  4. Step 4: Simplify right side
    30,284,919.20x = 987,919,055,419,323.75
  5. Step 5: Solve for x
    x = 987,919,055,419,323.75/30,284,919.20
  6. Step 6: Final answer
    x = 32,620,825.20

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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.