Home / 6,419,427.54-8,853,644.31-5,643,399.18

Finding the Fourth Proportional to 6,419,427.54, 8,853,644.31 and 5,643,399.18

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Solution

The fourth proportional to 6,419,427.54, 8,853,644.31 and 5,643,399.18 is: 7,783,349.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419,427.54 : 8,853,644.31 = 5,643,399.18 : x
  2. Step 2: Convert to fraction form
    6,419,427.54/8,853,644.31 = 5,643,399.18/x
  3. Step 3: Cross multiply
    6,419,427.54x = 8,853,644.31 × 5,643,399.18
  4. Step 4: Simplify right side
    6,419,427.54x = 49,964,649,039,065.66
  5. Step 5: Solve for x
    x = 49,964,649,039,065.66/6,419,427.54
  6. Step 6: Final answer
    x = 7,783,349.64

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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.