Home / 12,116,486.40-18,152,611.20-7,383,148.80

Finding the Fourth Proportional to 12,116,486.40, 18,152,611.20 and 7,383,148.80

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Solution

The fourth proportional to 12,116,486.40, 18,152,611.20 and 7,383,148.80 is: 11,061,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,486.40 : 18,152,611.20 = 7,383,148.80 : x
  2. Step 2: Convert to fraction form
    12,116,486.40/18,152,611.20 = 7,383,148.80/x
  3. Step 3: Cross multiply
    12,116,486.40x = 18,152,611.20 × 7,383,148.80
  4. Step 4: Simplify right side
    12,116,486.40x = 134,023,429,598,146.55
  5. Step 5: Solve for x
    x = 134,023,429,598,146.55/12,116,486.40
  6. Step 6: Final answer
    x = 11,061,245.41

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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.