Home / 8,709,121.80-13,047,936.30-7,449,409.80

Finding the Fourth Proportional to 8,709,121.80, 13,047,936.30 and 7,449,409.80

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Solution

The fourth proportional to 8,709,121.80, 13,047,936.30 and 7,449,409.80 is: 11,160,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709,121.80 : 13,047,936.30 = 7,449,409.80 : x
  2. Step 2: Convert to fraction form
    8,709,121.80/13,047,936.30 = 7,449,409.80/x
  3. Step 3: Cross multiply
    8,709,121.80x = 13,047,936.30 × 7,449,409.80
  4. Step 4: Simplify right side
    8,709,121.80x = 97,199,424,542,995.75
  5. Step 5: Solve for x
    x = 97,199,424,542,995.75/8,709,121.80
  6. Step 6: Final answer
    x = 11,160,645.90

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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.