Home / 11,987,840.70-17,966,998.80-8,149,655.70

Finding the Fourth Proportional to 11,987,840.70, 17,966,998.80 and 8,149,655.70

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Solution

The fourth proportional to 11,987,840.70, 17,966,998.80 and 8,149,655.70 is: 12,214,447.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987,840.70 : 17,966,998.80 = 8,149,655.70 : x
  2. Step 2: Convert to fraction form
    11,987,840.70/17,966,998.80 = 8,149,655.70/x
  3. Step 3: Cross multiply
    11,987,840.70x = 17,966,998.80 × 8,149,655.70
  4. Step 4: Simplify right side
    11,987,840.70x = 146,424,854,182,313.16
  5. Step 5: Solve for x
    x = 146,424,854,182,313.16/11,987,840.70
  6. Step 6: Final answer
    x = 12,214,447.78

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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.