Home / 30,827,693.91-42,542,202.80-18,437,787.12

Finding the Fourth Proportional to 30,827,693.91, 42,542,202.80 and 18,437,787.12

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Solution

The fourth proportional to 30,827,693.91, 42,542,202.80 and 18,437,787.12 is: 25,444,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827,693.91 : 42,542,202.80 = 18,437,787.12 : x
  2. Step 2: Convert to fraction form
    30,827,693.91/42,542,202.80 = 18,437,787.12/x
  3. Step 3: Cross multiply
    30,827,693.91x = 42,542,202.80 × 18,437,787.12
  4. Step 4: Simplify right side
    30,827,693.91x = 784,384,078,629,556.75
  5. Step 5: Solve for x
    x = 784,384,078,629,556.75/30,827,693.91
  6. Step 6: Final answer
    x = 25,444,137.37

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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.