Home / 18,622,648-25,684,695.21-12,098,379.58

Finding the Fourth Proportional to 18,622,648, 25,684,695.21 and 12,098,379.58

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Solution

The fourth proportional to 18,622,648, 25,684,695.21 and 12,098,379.58 is: 16,686,305.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622,648 : 25,684,695.21 = 12,098,379.58 : x
  2. Step 2: Convert to fraction form
    18,622,648/25,684,695.21 = 12,098,379.58/x
  3. Step 3: Cross multiply
    18,622,648x = 25,684,695.21 × 12,098,379.58
  4. Step 4: Simplify right side
    18,622,648x = 310,743,192,047,187.81
  5. Step 5: Solve for x
    x = 310,743,192,047,187.81/18,622,648
  6. Step 6: Final answer
    x = 16,686,305.41

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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.