Home / 12,126,920.90-18,192,908.55-4,042,408.10

Finding the Fourth Proportional to 12,126,920.90, 18,192,908.55 and 4,042,408.10

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Solution

The fourth proportional to 12,126,920.90, 18,192,908.55 and 4,042,408.10 is: 6,064,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,920.90 : 18,192,908.55 = 4,042,408.10 : x
  2. Step 2: Convert to fraction form
    12,126,920.90/18,192,908.55 = 4,042,408.10/x
  3. Step 3: Cross multiply
    12,126,920.90x = 18,192,908.55 × 4,042,408.10
  4. Step 4: Simplify right side
    12,126,920.90x = 73,543,160,885,079.27
  5. Step 5: Solve for x
    x = 73,543,160,885,079.27/12,126,920.90
  6. Step 6: Final answer
    x = 6,064,454.57

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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.