Home / 12,489,148.80-18,735,472.80-5,300,625.60

Finding the Fourth Proportional to 12,489,148.80, 18,735,472.80 and 5,300,625.60

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Solution

The fourth proportional to 12,489,148.80, 18,735,472.80 and 5,300,625.60 is: 7,951,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489,148.80 : 18,735,472.80 = 5,300,625.60 : x
  2. Step 2: Convert to fraction form
    12,489,148.80/18,735,472.80 = 5,300,625.60/x
  3. Step 3: Cross multiply
    12,489,148.80x = 18,735,472.80 × 5,300,625.60
  4. Step 4: Simplify right side
    12,489,148.80x = 99,309,726,751,783.67
  5. Step 5: Solve for x
    x = 99,309,726,751,783.67/12,489,148.80
  6. Step 6: Final answer
    x = 7,951,680.96

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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.