Home / 12,879,040.20-19,318,560.30-12,081,878.70

Finding the Fourth Proportional to 12,879,040.20, 19,318,560.30 and 12,081,878.70

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Solution

The fourth proportional to 12,879,040.20, 19,318,560.30 and 12,081,878.70 is: 18,122,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,040.20 : 19,318,560.30 = 12,081,878.70 : x
  2. Step 2: Convert to fraction form
    12,879,040.20/19,318,560.30 = 12,081,878.70/x
  3. Step 3: Cross multiply
    12,879,040.20x = 19,318,560.30 × 12,081,878.70
  4. Step 4: Simplify right side
    12,879,040.20x = 233,404,502,203,235.59
  5. Step 5: Solve for x
    x = 233,404,502,203,235.59/12,879,040.20
  6. Step 6: Final answer
    x = 18,122,818.05

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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.