Home / 13,320,311.66-18,382,029.84-7,208,740.16

Finding the Fourth Proportional to 13,320,311.66, 18,382,029.84 and 7,208,740.16

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Solution

The fourth proportional to 13,320,311.66, 18,382,029.84 and 7,208,740.16 is: 9,948,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,311.66 : 18,382,029.84 = 7,208,740.16 : x
  2. Step 2: Convert to fraction form
    13,320,311.66/18,382,029.84 = 7,208,740.16/x
  3. Step 3: Cross multiply
    13,320,311.66x = 18,382,029.84 × 7,208,740.16
  4. Step 4: Simplify right side
    13,320,311.66x = 132,511,276,729,926.38
  5. Step 5: Solve for x
    x = 132,511,276,729,926.38/13,320,311.66
  6. Step 6: Final answer
    x = 9,948,061.29

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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.