Home / 21,137,487.36-29,171,531.52-11,971,760.64

Finding the Fourth Proportional to 21,137,487.36, 29,171,531.52 and 11,971,760.64

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Solution

The fourth proportional to 21,137,487.36, 29,171,531.52 and 11,971,760.64 is: 16,522,048.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137,487.36 : 29,171,531.52 = 11,971,760.64 : x
  2. Step 2: Convert to fraction form
    21,137,487.36/29,171,531.52 = 11,971,760.64/x
  3. Step 3: Cross multiply
    21,137,487.36x = 29,171,531.52 × 11,971,760.64
  4. Step 4: Simplify right side
    21,137,487.36x = 349,234,592,859,655.38
  5. Step 5: Solve for x
    x = 349,234,592,859,655.38/21,137,487.36
  6. Step 6: Final answer
    x = 16,522,048.57

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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.