Home / 13,290,703-18,341,177.52-7,179,131.56

Finding the Fourth Proportional to 13,290,703, 18,341,177.52 and 7,179,131.56

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Solution

The fourth proportional to 13,290,703, 18,341,177.52 and 7,179,131.56 is: 9,907,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,703 : 18,341,177.52 = 7,179,131.56 : x
  2. Step 2: Convert to fraction form
    13,290,703/18,341,177.52 = 7,179,131.56/x
  3. Step 3: Cross multiply
    13,290,703x = 18,341,177.52 × 7,179,131.56
  4. Step 4: Simplify right side
    13,290,703x = 131,673,726,381,394.52
  5. Step 5: Solve for x
    x = 131,673,726,381,394.52/13,290,703
  6. Step 6: Final answer
    x = 9,907,205.54

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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.