Home / 12,942,662.40-19,426,435.20-6,560,121.60

Finding the Fourth Proportional to 12,942,662.40, 19,426,435.20 and 6,560,121.60

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Solution

The fourth proportional to 12,942,662.40, 19,426,435.20 and 6,560,121.60 is: 9,846,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,662.40 : 19,426,435.20 = 6,560,121.60 : x
  2. Step 2: Convert to fraction form
    12,942,662.40/19,426,435.20 = 6,560,121.60/x
  3. Step 3: Cross multiply
    12,942,662.40x = 19,426,435.20 × 6,560,121.60
  4. Step 4: Simplify right side
    12,942,662.40x = 127,439,777,166,520.31
  5. Step 5: Solve for x
    x = 127,439,777,166,520.31/12,942,662.40
  6. Step 6: Final answer
    x = 9,846,488.55

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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.