Home / 18,707,217.20-28,039,830.60-7,922,682.80

Finding the Fourth Proportional to 18,707,217.20, 28,039,830.60 and 7,922,682.80

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Solution

The fourth proportional to 18,707,217.20, 28,039,830.60 and 7,922,682.80 is: 11,875,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707,217.20 : 28,039,830.60 = 7,922,682.80 : x
  2. Step 2: Convert to fraction form
    18,707,217.20/28,039,830.60 = 7,922,682.80/x
  3. Step 3: Cross multiply
    18,707,217.20x = 28,039,830.60 × 7,922,682.80
  4. Step 4: Simplify right side
    18,707,217.20x = 222,150,683,609,533.69
  5. Step 5: Solve for x
    x = 222,150,683,609,533.69/18,707,217.20
  6. Step 6: Final answer
    x = 11,875,132.53

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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.