Home / 15,345,189.82-21,174,853.29-8,469,228.58

Finding the Fourth Proportional to 15,345,189.82, 21,174,853.29 and 8,469,228.58

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Solution

The fourth proportional to 15,345,189.82, 21,174,853.29 and 8,469,228.58 is: 11,686,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345,189.82 : 21,174,853.29 = 8,469,228.58 : x
  2. Step 2: Convert to fraction form
    15,345,189.82/21,174,853.29 = 8,469,228.58/x
  3. Step 3: Cross multiply
    15,345,189.82x = 21,174,853.29 × 8,469,228.58
  4. Step 4: Simplify right side
    15,345,189.82x = 179,334,672,660,975.03
  5. Step 5: Solve for x
    x = 179,334,672,660,975.03/15,345,189.82
  6. Step 6: Final answer
    x = 11,686,702.79

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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.