Home / 12,922,846.80-19,384,270.20-7,883,998.80

Finding the Fourth Proportional to 12,922,846.80, 19,384,270.20 and 7,883,998.80

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Solution

The fourth proportional to 12,922,846.80, 19,384,270.20 and 7,883,998.80 is: 11,825,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,846.80 : 19,384,270.20 = 7,883,998.80 : x
  2. Step 2: Convert to fraction form
    12,922,846.80/19,384,270.20 = 7,883,998.80/x
  3. Step 3: Cross multiply
    12,922,846.80x = 19,384,270.20 × 7,883,998.80
  4. Step 4: Simplify right side
    12,922,846.80x = 152,825,562,995,675.75
  5. Step 5: Solve for x
    x = 152,825,562,995,675.75/12,922,846.80
  6. Step 6: Final answer
    x = 11,825,998.20

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Double scale
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Similar ratio
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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.