Home / 21,215,119.88-31,805,516.91-6,634,537.81

Finding the Fourth Proportional to 21,215,119.88, 31,805,516.91 and 6,634,537.81

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Solution

The fourth proportional to 21,215,119.88, 31,805,516.91 and 6,634,537.81 is: 9,946,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215,119.88 : 31,805,516.91 = 6,634,537.81 : x
  2. Step 2: Convert to fraction form
    21,215,119.88/31,805,516.91 = 6,634,537.81/x
  3. Step 3: Cross multiply
    21,215,119.88x = 31,805,516.91 × 6,634,537.81
  4. Step 4: Simplify right side
    21,215,119.88x = 211,014,904,505,989.34
  5. Step 5: Solve for x
    x = 211,014,904,505,989.34/21,215,119.88
  6. Step 6: Final answer
    x = 9,946,439.41

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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.