Home / 8,940,120.80-13,410,181.20-6,439,359.20

Finding the Fourth Proportional to 8,940,120.80, 13,410,181.20 and 6,439,359.20

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Solution

The fourth proportional to 8,940,120.80, 13,410,181.20 and 6,439,359.20 is: 9,659,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940,120.80 : 13,410,181.20 = 6,439,359.20 : x
  2. Step 2: Convert to fraction form
    8,940,120.80/13,410,181.20 = 6,439,359.20/x
  3. Step 3: Cross multiply
    8,940,120.80x = 13,410,181.20 × 6,439,359.20
  4. Step 4: Simplify right side
    8,940,120.80x = 86,352,973,683,887.03
  5. Step 5: Solve for x
    x = 86,352,973,683,887.03/8,940,120.80
  6. Step 6: Final answer
    x = 9,659,038.80

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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.