Home / 12,252,961.40-18,383,378.70-8,214,009.80

Finding the Fourth Proportional to 12,252,961.40, 18,383,378.70 and 8,214,009.80

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Solution

The fourth proportional to 12,252,961.40, 18,383,378.70 and 8,214,009.80 is: 12,323,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252,961.40 : 18,383,378.70 = 8,214,009.80 : x
  2. Step 2: Convert to fraction form
    12,252,961.40/18,383,378.70 = 8,214,009.80/x
  3. Step 3: Cross multiply
    12,252,961.40x = 18,383,378.70 × 8,214,009.80
  4. Step 4: Simplify right side
    12,252,961.40x = 151,001,252,798,911.25
  5. Step 5: Solve for x
    x = 151,001,252,798,911.25/12,252,961.40
  6. Step 6: Final answer
    x = 12,323,653.68

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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.