Home / 19,179,067.40-28,768,601.10-12,012,705.80

Finding the Fourth Proportional to 19,179,067.40, 28,768,601.10 and 12,012,705.80

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Solution

The fourth proportional to 19,179,067.40, 28,768,601.10 and 12,012,705.80 is: 18,019,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179,067.40 : 28,768,601.10 = 12,012,705.80 : x
  2. Step 2: Convert to fraction form
    19,179,067.40/28,768,601.10 = 12,012,705.80/x
  3. Step 3: Cross multiply
    19,179,067.40x = 28,768,601.10 × 12,012,705.80
  4. Step 4: Simplify right side
    19,179,067.40x = 345,588,741,291,856.44
  5. Step 5: Solve for x
    x = 345,588,741,291,856.44/19,179,067.40
  6. Step 6: Final answer
    x = 18,019,058.70

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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.