Home / 12,245,666.20-18,347,504.10-7,983,640.60

Finding the Fourth Proportional to 12,245,666.20, 18,347,504.10 and 7,983,640.60

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Solution

The fourth proportional to 12,245,666.20, 18,347,504.10 and 7,983,640.60 is: 11,961,772.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245,666.20 : 18,347,504.10 = 7,983,640.60 : x
  2. Step 2: Convert to fraction form
    12,245,666.20/18,347,504.10 = 7,983,640.60/x
  3. Step 3: Cross multiply
    12,245,666.20x = 18,347,504.10 × 7,983,640.60
  4. Step 4: Simplify right side
    12,245,666.20x = 146,479,878,641,426.47
  5. Step 5: Solve for x
    x = 146,479,878,641,426.47/12,245,666.20
  6. Step 6: Final answer
    x = 11,961,772.94

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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.