Home / 15,345,021.11-21,174,621.48-8,469,060.30

Finding the Fourth Proportional to 15,345,021.11, 21,174,621.48 and 8,469,060.30

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Solution

The fourth proportional to 15,345,021.11, 21,174,621.48 and 8,469,060.30 is: 11,686,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345,021.11 : 21,174,621.48 = 8,469,060.30 : x
  2. Step 2: Convert to fraction form
    15,345,021.11/21,174,621.48 = 8,469,060.30/x
  3. Step 3: Cross multiply
    15,345,021.11x = 21,174,621.48 × 8,469,060.30
  4. Step 4: Simplify right side
    15,345,021.11x = 179,329,146,143,795.25
  5. Step 5: Solve for x
    x = 179,329,146,143,795.25/15,345,021.11
  6. Step 6: Final answer
    x = 11,686,471.13

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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.