Home / 12,393,005.40-18,589,508.10-3,873,328.20

Finding the Fourth Proportional to 12,393,005.40, 18,589,508.10 and 3,873,328.20

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Solution

The fourth proportional to 12,393,005.40, 18,589,508.10 and 3,873,328.20 is: 5,809,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393,005.40 : 18,589,508.10 = 3,873,328.20 : x
  2. Step 2: Convert to fraction form
    12,393,005.40/18,589,508.10 = 3,873,328.20/x
  3. Step 3: Cross multiply
    12,393,005.40x = 18,589,508.10 × 3,873,328.20
  4. Step 4: Simplify right side
    12,393,005.40x = 72,003,265,947,858.42
  5. Step 5: Solve for x
    x = 72,003,265,947,858.42/12,393,005.40
  6. Step 6: Final answer
    x = 5,809,992.30

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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.