Home / 12,018,115.69-18,027,173.55-2,920,166.53

Finding the Fourth Proportional to 12,018,115.69, 18,027,173.55 and 2,920,166.53

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Solution

The fourth proportional to 12,018,115.69, 18,027,173.55 and 2,920,166.53 is: 4,380,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018,115.69 : 18,027,173.55 = 2,920,166.53 : x
  2. Step 2: Convert to fraction form
    12,018,115.69/18,027,173.55 = 2,920,166.53/x
  3. Step 3: Cross multiply
    12,018,115.69x = 18,027,173.55 × 2,920,166.53
  4. Step 4: Simplify right side
    12,018,115.69x = 52,642,348,831,211.28
  5. Step 5: Solve for x
    x = 52,642,348,831,211.28/12,018,115.69
  6. Step 6: Final answer
    x = 4,380,249.80

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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.