Home / 7,972,135.50-11,952,410.06-3,178,387.02

Finding the Fourth Proportional to 7,972,135.50, 11,952,410.06 and 3,178,387.02

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Solution

The fourth proportional to 7,972,135.50, 11,952,410.06 and 3,178,387.02 is: 4,765,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972,135.50 : 11,952,410.06 = 3,178,387.02 : x
  2. Step 2: Convert to fraction form
    7,972,135.50/11,952,410.06 = 3,178,387.02/x
  3. Step 3: Cross multiply
    7,972,135.50x = 11,952,410.06 × 3,178,387.02
  4. Step 4: Simplify right side
    7,972,135.50x = 37,989,384,992,421.42
  5. Step 5: Solve for x
    x = 37,989,384,992,421.42/7,972,135.50
  6. Step 6: Final answer
    x = 4,765,270.86

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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.