Home / 8,321,111.80-12,481,667.70-6,809,457.40

Finding the Fourth Proportional to 8,321,111.80, 12,481,667.70 and 6,809,457.40

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Solution

The fourth proportional to 8,321,111.80, 12,481,667.70 and 6,809,457.40 is: 10,214,186.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,111.80 : 12,481,667.70 = 6,809,457.40 : x
  2. Step 2: Convert to fraction form
    8,321,111.80/12,481,667.70 = 6,809,457.40/x
  3. Step 3: Cross multiply
    8,321,111.80x = 12,481,667.70 × 6,809,457.40
  4. Step 4: Simplify right side
    8,321,111.80x = 84,993,384,484,105.98
  5. Step 5: Solve for x
    x = 84,993,384,484,105.98/8,321,111.80
  6. Step 6: Final answer
    x = 10,214,186.10

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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.