Home / 30,827,704.43-42,542,217.31-18,437,797.64

Finding the Fourth Proportional to 30,827,704.43, 42,542,217.31 and 18,437,797.64

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Solution

The fourth proportional to 30,827,704.43, 42,542,217.31 and 18,437,797.64 is: 25,444,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827,704.43 : 42,542,217.31 = 18,437,797.64 : x
  2. Step 2: Convert to fraction form
    30,827,704.43/42,542,217.31 = 18,437,797.64/x
  3. Step 3: Cross multiply
    30,827,704.43x = 42,542,217.31 × 18,437,797.64
  4. Step 4: Simplify right side
    30,827,704.43x = 784,384,793,826,496.12
  5. Step 5: Solve for x
    x = 784,384,793,826,496.12/30,827,704.43
  6. Step 6: Final answer
    x = 25,444,151.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.