Home / 7,070,902.78-9,757,118.78-3,972,933.90

Finding the Fourth Proportional to 7,070,902.78, 9,757,118.78 and 3,972,933.90

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Solution

The fourth proportional to 7,070,902.78, 9,757,118.78 and 3,972,933.90 is: 5,482,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070,902.78 : 9,757,118.78 = 3,972,933.90 : x
  2. Step 2: Convert to fraction form
    7,070,902.78/9,757,118.78 = 3,972,933.90/x
  3. Step 3: Cross multiply
    7,070,902.78x = 9,757,118.78 × 3,972,933.90
  4. Step 4: Simplify right side
    7,070,902.78x = 38,764,387,967,388.64
  5. Step 5: Solve for x
    x = 38,764,387,967,388.64/7,070,902.78
  6. Step 6: Final answer
    x = 5,482,240.27

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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.