Home / 7,241,008.21-9,992,597.87-3,978,034.31

Finding the Fourth Proportional to 7,241,008.21, 9,992,597.87 and 3,978,034.31

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Solution

The fourth proportional to 7,241,008.21, 9,992,597.87 and 3,978,034.31 is: 5,489,690.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241,008.21 : 9,992,597.87 = 3,978,034.31 : x
  2. Step 2: Convert to fraction form
    7,241,008.21/9,992,597.87 = 3,978,034.31/x
  3. Step 3: Cross multiply
    7,241,008.21x = 9,992,597.87 × 3,978,034.31
  4. Step 4: Simplify right side
    7,241,008.21x = 39,750,897,172,892.91
  5. Step 5: Solve for x
    x = 39,750,897,172,892.91/7,241,008.21
  6. Step 6: Final answer
    x = 5,489,690.94

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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.