Home / 14,040,400.80-21,060,601.20-12,472,759.20

Finding the Fourth Proportional to 14,040,400.80, 21,060,601.20 and 12,472,759.20

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Solution

The fourth proportional to 14,040,400.80, 21,060,601.20 and 12,472,759.20 is: 18,709,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040,400.80 : 21,060,601.20 = 12,472,759.20 : x
  2. Step 2: Convert to fraction form
    14,040,400.80/21,060,601.20 = 12,472,759.20/x
  3. Step 3: Cross multiply
    14,040,400.80x = 21,060,601.20 × 12,472,759.20
  4. Step 4: Simplify right side
    14,040,400.80x = 262,683,807,374,831
  5. Step 5: Solve for x
    x = 262,683,807,374,831/14,040,400.80
  6. Step 6: Final answer
    x = 18,709,138.80

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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.