Home / 8,161,997.80-12,228,999.90-5,320,647.40

Finding the Fourth Proportional to 8,161,997.80, 12,228,999.90 and 5,320,647.40

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Solution

The fourth proportional to 8,161,997.80, 12,228,999.90 and 5,320,647.40 is: 7,971,846.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161,997.80 : 12,228,999.90 = 5,320,647.40 : x
  2. Step 2: Convert to fraction form
    8,161,997.80/12,228,999.90 = 5,320,647.40/x
  3. Step 3: Cross multiply
    8,161,997.80x = 12,228,999.90 × 5,320,647.40
  4. Step 4: Simplify right side
    8,161,997.80x = 65,066,196,522,535.27
  5. Step 5: Solve for x
    x = 65,066,196,522,535.27/8,161,997.80
  6. Step 6: Final answer
    x = 7,971,846.86

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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.