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Finding the Fourth Proportional to 17,603,999.80, 26,405,999.70 and 13,352,471.80

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Solution

The fourth proportional to 17,603,999.80, 26,405,999.70 and 13,352,471.80 is: 20,028,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603,999.80 : 26,405,999.70 = 13,352,471.80 : x
  2. Step 2: Convert to fraction form
    17,603,999.80/26,405,999.70 = 13,352,471.80/x
  3. Step 3: Cross multiply
    17,603,999.80x = 26,405,999.70 × 13,352,471.80
  4. Step 4: Simplify right side
    17,603,999.80x = 352,585,366,345,058.50
  5. Step 5: Solve for x
    x = 352,585,366,345,058.50/17,603,999.80
  6. Step 6: Final answer
    x = 20,028,707.70

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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.