Home / 12,942,660.40-19,426,432.20-6,560,119.60

Finding the Fourth Proportional to 12,942,660.40, 19,426,432.20 and 6,560,119.60

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Solution

The fourth proportional to 12,942,660.40, 19,426,432.20 and 6,560,119.60 is: 9,846,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,660.40 : 19,426,432.20 = 6,560,119.60 : x
  2. Step 2: Convert to fraction form
    12,942,660.40/19,426,432.20 = 6,560,119.60/x
  3. Step 3: Cross multiply
    12,942,660.40x = 19,426,432.20 × 6,560,119.60
  4. Step 4: Simplify right side
    12,942,660.40x = 127,439,718,633,291.11
  5. Step 5: Solve for x
    x = 127,439,718,633,291.11/12,942,660.40
  6. Step 6: Final answer
    x = 9,846,485.55

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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.