Home / 12,502,172.21-18,728,993.16-9,213,554.14

Finding the Fourth Proportional to 12,502,172.21, 18,728,993.16 and 9,213,554.14

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Solution

The fourth proportional to 12,502,172.21, 18,728,993.16 and 9,213,554.14 is: 13,802,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502,172.21 : 18,728,993.16 = 9,213,554.14 : x
  2. Step 2: Convert to fraction form
    12,502,172.21/18,728,993.16 = 9,213,554.14/x
  3. Step 3: Cross multiply
    12,502,172.21x = 18,728,993.16 × 9,213,554.14
  4. Step 4: Simplify right side
    12,502,172.21x = 172,560,592,420,527.19
  5. Step 5: Solve for x
    x = 172,560,592,420,527.19/12,502,172.21
  6. Step 6: Final answer
    x = 13,802,448.85

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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.