Home / 12,918,778.16-19,381,168.89-4,399,188.44

Finding the Fourth Proportional to 12,918,778.16, 19,381,168.89 and 4,399,188.44

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Solution

The fourth proportional to 12,918,778.16, 19,381,168.89 and 4,399,188.44 is: 6,599,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918,778.16 : 19,381,168.89 = 4,399,188.44 : x
  2. Step 2: Convert to fraction form
    12,918,778.16/19,381,168.89 = 4,399,188.44/x
  3. Step 3: Cross multiply
    12,918,778.16x = 19,381,168.89 × 4,399,188.44
  4. Step 4: Simplify right side
    12,918,778.16x = 85,261,414,037,669.78
  5. Step 5: Solve for x
    x = 85,261,414,037,669.78/12,918,778.16
  6. Step 6: Final answer
    x = 6,599,804.80

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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.