Home / 13,290,695-18,341,166.48-7,179,123.56

Finding the Fourth Proportional to 13,290,695, 18,341,166.48 and 7,179,123.56

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Solution

The fourth proportional to 13,290,695, 18,341,166.48 and 7,179,123.56 is: 9,907,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,695 : 18,341,166.48 = 7,179,123.56 : x
  2. Step 2: Convert to fraction form
    13,290,695/18,341,166.48 = 7,179,123.56/x
  3. Step 3: Cross multiply
    13,290,695x = 18,341,166.48 × 7,179,123.56
  4. Step 4: Simplify right side
    13,290,695x = 131,673,500,394,450.27
  5. Step 5: Solve for x
    x = 131,673,500,394,450.27/13,290,695
  6. Step 6: Final answer
    x = 9,907,194.50

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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.