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Finding the Fourth Proportional to 7,658,241.68, 11,488,728.74 and 2,540,978.64

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Solution

The fourth proportional to 7,658,241.68, 11,488,728.74 and 2,540,978.64 is: 3,811,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658,241.68 : 11,488,728.74 = 2,540,978.64 : x
  2. Step 2: Convert to fraction form
    7,658,241.68/11,488,728.74 = 2,540,978.64/x
  3. Step 3: Cross multiply
    7,658,241.68x = 11,488,728.74 × 2,540,978.64
  4. Step 4: Simplify right side
    7,658,241.68x = 29,192,614,329,094.12
  5. Step 5: Solve for x
    x = 29,192,614,329,094.12/7,658,241.68
  6. Step 6: Final answer
    x = 3,811,921.27

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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.