Home / 12,951,998.60-19,430,330.70-5,379,729.80

Finding the Fourth Proportional to 12,951,998.60, 19,430,330.70 and 5,379,729.80

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Solution

The fourth proportional to 12,951,998.60, 19,430,330.70 and 5,379,729.80 is: 8,070,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951,998.60 : 19,430,330.70 = 5,379,729.80 : x
  2. Step 2: Convert to fraction form
    12,951,998.60/19,430,330.70 = 5,379,729.80/x
  3. Step 3: Cross multiply
    12,951,998.60x = 19,430,330.70 × 5,379,729.80
  4. Step 4: Simplify right side
    12,951,998.60x = 104,529,929,090,644.86
  5. Step 5: Solve for x
    x = 104,529,929,090,644.86/12,951,998.60
  6. Step 6: Final answer
    x = 8,070,563.65

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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.