Home / 19,515,840.69-29,267,375.34-9,137,847.72

Finding the Fourth Proportional to 19,515,840.69, 29,267,375.34 and 9,137,847.72

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Solution

The fourth proportional to 19,515,840.69, 29,267,375.34 and 9,137,847.72 is: 13,703,781.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515,840.69 : 29,267,375.34 = 9,137,847.72 : x
  2. Step 2: Convert to fraction form
    19,515,840.69/29,267,375.34 = 9,137,847.72/x
  3. Step 3: Cross multiply
    19,515,840.69x = 29,267,375.34 × 9,137,847.72
  4. Step 4: Simplify right side
    19,515,840.69x = 267,440,819,021,003.25
  5. Step 5: Solve for x
    x = 267,440,819,021,003.25/19,515,840.69
  6. Step 6: Final answer
    x = 13,703,781.62

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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.