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Finding the Fourth Proportional to 30,361,578, 45,542,410.80 and 12,410,682

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Solution

The fourth proportional to 30,361,578, 45,542,410.80 and 12,410,682 is: 18,616,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361,578 : 45,542,410.80 = 12,410,682 : x
  2. Step 2: Convert to fraction form
    30,361,578/45,542,410.80 = 12,410,682/x
  3. Step 3: Cross multiply
    30,361,578x = 45,542,410.80 × 12,410,682
  4. Step 4: Simplify right side
    30,361,578x = 565,212,377,952,165.62
  5. Step 5: Solve for x
    x = 565,212,377,952,165.62/30,361,578
  6. Step 6: Final answer
    x = 18,616,040.90

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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.