Home / 12,505,848.20-18,730,778.70-7,467,000.20

Finding the Fourth Proportional to 12,505,848.20, 18,730,778.70 and 7,467,000.20

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Solution

The fourth proportional to 12,505,848.20, 18,730,778.70 and 7,467,000.20 is: 11,183,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505,848.20 : 18,730,778.70 = 7,467,000.20 : x
  2. Step 2: Convert to fraction form
    12,505,848.20/18,730,778.70 = 7,467,000.20/x
  3. Step 3: Cross multiply
    12,505,848.20x = 18,730,778.70 × 7,467,000.20
  4. Step 4: Simplify right side
    12,505,848.20x = 139,862,728,299,055.73
  5. Step 5: Solve for x
    x = 139,862,728,299,055.73/12,505,848.20
  6. Step 6: Final answer
    x = 11,183,785.86

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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.