Home / 12,381,415.80-18,530,133.30-10,869,761.40

Finding the Fourth Proportional to 12,381,415.80, 18,530,133.30 and 10,869,761.40

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Solution

The fourth proportional to 12,381,415.80, 18,530,133.30 and 10,869,761.40 is: 16,267,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,415.80 : 18,530,133.30 = 10,869,761.40 : x
  2. Step 2: Convert to fraction form
    12,381,415.80/18,530,133.30 = 10,869,761.40/x
  3. Step 3: Cross multiply
    12,381,415.80x = 18,530,133.30 × 10,869,761.40
  4. Step 4: Simplify right side
    12,381,415.80x = 201,418,127,681,194.62
  5. Step 5: Solve for x
    x = 201,418,127,681,194.62/12,381,415.80
  6. Step 6: Final answer
    x = 16,267,778.33

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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.