Home / 18,683,470.40-28,025,205.60-15,707,400.80

Finding the Fourth Proportional to 18,683,470.40, 28,025,205.60 and 15,707,400.80

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Solution

The fourth proportional to 18,683,470.40, 28,025,205.60 and 15,707,400.80 is: 23,561,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,470.40 : 28,025,205.60 = 15,707,400.80 : x
  2. Step 2: Convert to fraction form
    18,683,470.40/28,025,205.60 = 15,707,400.80/x
  3. Step 3: Cross multiply
    18,683,470.40x = 28,025,205.60 × 15,707,400.80
  4. Step 4: Simplify right side
    18,683,470.40x = 440,203,136,861,604.50
  5. Step 5: Solve for x
    x = 440,203,136,861,604.50/18,683,470.40
  6. Step 6: Final answer
    x = 23,561,101.20

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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.