Home / 7,867,412.32-11,802,379.61-3,319,131.07

Finding the Fourth Proportional to 7,867,412.32, 11,802,379.61 and 3,319,131.07

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Solution

The fourth proportional to 7,867,412.32, 11,802,379.61 and 3,319,131.07 is: 4,979,228.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867,412.32 : 11,802,379.61 = 3,319,131.07 : x
  2. Step 2: Convert to fraction form
    7,867,412.32/11,802,379.61 = 3,319,131.07/x
  3. Step 3: Cross multiply
    7,867,412.32x = 11,802,379.61 × 3,319,131.07
  4. Step 4: Simplify right side
    7,867,412.32x = 39,173,644,817,383.88
  5. Step 5: Solve for x
    x = 39,173,644,817,383.88/7,867,412.32
  6. Step 6: Final answer
    x = 4,979,228.65

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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.