Home / 13,187,791.80-19,781,687.70-9,361,416.60

Finding the Fourth Proportional to 13,187,791.80, 19,781,687.70 and 9,361,416.60

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Solution

The fourth proportional to 13,187,791.80, 19,781,687.70 and 9,361,416.60 is: 14,042,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,791.80 : 19,781,687.70 = 9,361,416.60 : x
  2. Step 2: Convert to fraction form
    13,187,791.80/19,781,687.70 = 9,361,416.60/x
  3. Step 3: Cross multiply
    13,187,791.80x = 19,781,687.70 × 9,361,416.60
  4. Step 4: Simplify right side
    13,187,791.80x = 185,184,619,610,795.81
  5. Step 5: Solve for x
    x = 185,184,619,610,795.81/13,187,791.80
  6. Step 6: Final answer
    x = 14,042,124.90

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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.