Home / 7,817,101.60-11,709,063.60-6,489,997.60

Finding the Fourth Proportional to 7,817,101.60, 11,709,063.60 and 6,489,997.60

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Solution

The fourth proportional to 7,817,101.60, 11,709,063.60 and 6,489,997.60 is: 9,721,223.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817,101.60 : 11,709,063.60 = 6,489,997.60 : x
  2. Step 2: Convert to fraction form
    7,817,101.60/11,709,063.60 = 6,489,997.60/x
  3. Step 3: Cross multiply
    7,817,101.60x = 11,709,063.60 × 6,489,997.60
  4. Step 4: Simplify right side
    7,817,101.60x = 75,991,794,662,247.36
  5. Step 5: Solve for x
    x = 75,991,794,662,247.36/7,817,101.60
  6. Step 6: Final answer
    x = 9,721,223.87

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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.