Home / 13,187,789.80-19,781,684.70-9,361,414.60

Finding the Fourth Proportional to 13,187,789.80, 19,781,684.70 and 9,361,414.60

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Solution

The fourth proportional to 13,187,789.80, 19,781,684.70 and 9,361,414.60 is: 14,042,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,789.80 : 19,781,684.70 = 9,361,414.60 : x
  2. Step 2: Convert to fraction form
    13,187,789.80/19,781,684.70 = 9,361,414.60/x
  3. Step 3: Cross multiply
    13,187,789.80x = 19,781,684.70 × 9,361,414.60
  4. Step 4: Simplify right side
    13,187,789.80x = 185,184,551,963,176.59
  5. Step 5: Solve for x
    x = 185,184,551,963,176.59/13,187,789.80
  6. Step 6: Final answer
    x = 14,042,121.90

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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.