Home / 8,213,465.91-12,319,257.56-2,148,782.88

Finding the Fourth Proportional to 8,213,465.91, 12,319,257.56 and 2,148,782.88

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Solution

The fourth proportional to 8,213,465.91, 12,319,257.56 and 2,148,782.88 is: 3,222,928.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213,465.91 : 12,319,257.56 = 2,148,782.88 : x
  2. Step 2: Convert to fraction form
    8,213,465.91/12,319,257.56 = 2,148,782.88/x
  3. Step 3: Cross multiply
    8,213,465.91x = 12,319,257.56 × 2,148,782.88
  4. Step 4: Simplify right side
    8,213,465.91x = 26,471,409,728,494.66
  5. Step 5: Solve for x
    x = 26,471,409,728,494.66/8,213,465.91
  6. Step 6: Final answer
    x = 3,222,928.06

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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.