Home / 8,786,357.88-13,188,853.44-7,782,000

Finding the Fourth Proportional to 8,786,357.88, 13,188,853.44 and 7,782,000

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Solution

The fourth proportional to 8,786,357.88, 13,188,853.44 and 7,782,000 is: 11,681,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786,357.88 : 13,188,853.44 = 7,782,000 : x
  2. Step 2: Convert to fraction form
    8,786,357.88/13,188,853.44 = 7,782,000/x
  3. Step 3: Cross multiply
    8,786,357.88x = 13,188,853.44 × 7,782,000
  4. Step 4: Simplify right side
    8,786,357.88x = 102,635,657,470,080
  5. Step 5: Solve for x
    x = 102,635,657,470,080/8,786,357.88
  6. Step 6: Final answer
    x = 11,681,251.65

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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.