Home / 21,617,982.72-32,431,599.99-7,971,168.33

Finding the Fourth Proportional to 21,617,982.72, 32,431,599.99 and 7,971,168.33

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Solution

The fourth proportional to 21,617,982.72, 32,431,599.99 and 7,971,168.33 is: 11,958,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617,982.72 : 32,431,599.99 = 7,971,168.33 : x
  2. Step 2: Convert to fraction form
    21,617,982.72/32,431,599.99 = 7,971,168.33/x
  3. Step 3: Cross multiply
    21,617,982.72x = 32,431,599.99 × 7,971,168.33
  4. Step 4: Simplify right side
    21,617,982.72x = 258,517,742,731,516.31
  5. Step 5: Solve for x
    x = 258,517,742,731,516.31/21,617,982.72
  6. Step 6: Final answer
    x = 11,958,458.20

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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.