Home / 12,407,100.80-18,611,234.40-3,887,715.20

Finding the Fourth Proportional to 12,407,100.80, 18,611,234.40 and 3,887,715.20

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Solution

The fourth proportional to 12,407,100.80, 18,611,234.40 and 3,887,715.20 is: 5,831,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407,100.80 : 18,611,234.40 = 3,887,715.20 : x
  2. Step 2: Convert to fraction form
    12,407,100.80/18,611,234.40 = 3,887,715.20/x
  3. Step 3: Cross multiply
    12,407,100.80x = 18,611,234.40 × 3,887,715.20
  4. Step 4: Simplify right side
    12,407,100.80x = 72,355,178,867,642.88
  5. Step 5: Solve for x
    x = 72,355,178,867,642.88/12,407,100.80
  6. Step 6: Final answer
    x = 5,831,755.54

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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.