Home / 12,239,675.20-18,362,277.60-7,188,385.60

Finding the Fourth Proportional to 12,239,675.20, 18,362,277.60 and 7,188,385.60

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Solution

The fourth proportional to 12,239,675.20, 18,362,277.60 and 7,188,385.60 is: 10,784,202.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239,675.20 : 18,362,277.60 = 7,188,385.60 : x
  2. Step 2: Convert to fraction form
    12,239,675.20/18,362,277.60 = 7,188,385.60/x
  3. Step 3: Cross multiply
    12,239,675.20x = 18,362,277.60 × 7,188,385.60
  4. Step 4: Simplify right side
    12,239,675.20x = 131,995,131,883,042.56
  5. Step 5: Solve for x
    x = 131,995,131,883,042.56/12,239,675.20
  6. Step 6: Final answer
    x = 10,784,202.17

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1.5x scale

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.