Home / 12,219,005.70-18,328,508.55-4,240,829.70

Finding the Fourth Proportional to 12,219,005.70, 18,328,508.55 and 4,240,829.70

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Solution

The fourth proportional to 12,219,005.70, 18,328,508.55 and 4,240,829.70 is: 6,361,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,005.70 : 18,328,508.55 = 4,240,829.70 : x
  2. Step 2: Convert to fraction form
    12,219,005.70/18,328,508.55 = 4,240,829.70/x
  3. Step 3: Cross multiply
    12,219,005.70x = 18,328,508.55 × 4,240,829.70
  4. Step 4: Simplify right side
    12,219,005.70x = 77,728,083,415,543.94
  5. Step 5: Solve for x
    x = 77,728,083,415,543.94/12,219,005.70
  6. Step 6: Final answer
    x = 6,361,244.55

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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.