Home / 25,880,081.20-38,820,121.80-12,409,975.60

Finding the Fourth Proportional to 25,880,081.20, 38,820,121.80 and 12,409,975.60

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Solution

The fourth proportional to 25,880,081.20, 38,820,121.80 and 12,409,975.60 is: 18,614,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880,081.20 : 38,820,121.80 = 12,409,975.60 : x
  2. Step 2: Convert to fraction form
    25,880,081.20/38,820,121.80 = 12,409,975.60/x
  3. Step 3: Cross multiply
    25,880,081.20x = 38,820,121.80 × 12,409,975.60
  4. Step 4: Simplify right side
    25,880,081.20x = 481,756,764,327,028
  5. Step 5: Solve for x
    x = 481,756,764,327,028/25,880,081.20
  6. Step 6: Final answer
    x = 18,614,963.40

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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.