Home / 8,079,980.40-11,147,459.26-6,219,964.77

Finding the Fourth Proportional to 8,079,980.40, 11,147,459.26 and 6,219,964.77

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Solution

The fourth proportional to 8,079,980.40, 11,147,459.26 and 6,219,964.77 is: 8,581,308.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079,980.40 : 11,147,459.26 = 6,219,964.77 : x
  2. Step 2: Convert to fraction form
    8,079,980.40/11,147,459.26 = 6,219,964.77/x
  3. Step 3: Cross multiply
    8,079,980.40x = 11,147,459.26 × 6,219,964.77
  4. Step 4: Simplify right side
    8,079,980.40x = 69,336,803,856,660.35
  5. Step 5: Solve for x
    x = 69,336,803,856,660.35/8,079,980.40
  6. Step 6: Final answer
    x = 8,581,308.42

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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.