Home / 6,789,579.36-9,369,865.89-3,889,530.72

Finding the Fourth Proportional to 6,789,579.36, 9,369,865.89 and 3,889,530.72

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Solution

The fourth proportional to 6,789,579.36, 9,369,865.89 and 3,889,530.72 is: 5,367,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789,579.36 : 9,369,865.89 = 3,889,530.72 : x
  2. Step 2: Convert to fraction form
    6,789,579.36/9,369,865.89 = 3,889,530.72/x
  3. Step 3: Cross multiply
    6,789,579.36x = 9,369,865.89 × 3,889,530.72
  4. Step 4: Simplify right side
    6,789,579.36x = 36,444,381,221,435.15
  5. Step 5: Solve for x
    x = 36,444,381,221,435.15/6,789,579.36
  6. Step 6: Final answer
    x = 5,367,693.53

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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.