Home / 7,889,365.34-11,833,129.47-2,131,825.40

Finding the Fourth Proportional to 7,889,365.34, 11,833,129.47 and 2,131,825.40

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Solution

The fourth proportional to 7,889,365.34, 11,833,129.47 and 2,131,825.40 is: 3,197,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889,365.34 : 11,833,129.47 = 2,131,825.40 : x
  2. Step 2: Convert to fraction form
    7,889,365.34/11,833,129.47 = 2,131,825.40/x
  3. Step 3: Cross multiply
    7,889,365.34x = 11,833,129.47 × 2,131,825.40
  4. Step 4: Simplify right side
    7,889,365.34x = 25,226,165,965,634.54
  5. Step 5: Solve for x
    x = 25,226,165,965,634.54/7,889,365.34
  6. Step 6: Final answer
    x = 3,197,489.90

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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.