Home / 8,237,654.40-12,356,481.60-6,809,980.80

Finding the Fourth Proportional to 8,237,654.40, 12,356,481.60 and 6,809,980.80

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Solution

The fourth proportional to 8,237,654.40, 12,356,481.60 and 6,809,980.80 is: 10,214,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237,654.40 : 12,356,481.60 = 6,809,980.80 : x
  2. Step 2: Convert to fraction form
    8,237,654.40/12,356,481.60 = 6,809,980.80/x
  3. Step 3: Cross multiply
    8,237,654.40x = 12,356,481.60 × 6,809,980.80
  4. Step 4: Simplify right side
    8,237,654.40x = 84,147,402,451,553.28
  5. Step 5: Solve for x
    x = 84,147,402,451,553.28/8,237,654.40
  6. Step 6: Final answer
    x = 10,214,971.20

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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.