Home / 8,385,906.96-11,572,178.94-5,128,180.92

Finding the Fourth Proportional to 8,385,906.96, 11,572,178.94 and 5,128,180.92

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Solution

The fourth proportional to 8,385,906.96, 11,572,178.94 and 5,128,180.92 is: 7,076,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385,906.96 : 11,572,178.94 = 5,128,180.92 : x
  2. Step 2: Convert to fraction form
    8,385,906.96/11,572,178.94 = 5,128,180.92/x
  3. Step 3: Cross multiply
    8,385,906.96x = 11,572,178.94 × 5,128,180.92
  4. Step 4: Simplify right side
    8,385,906.96x = 59,344,227,242,933.82
  5. Step 5: Solve for x
    x = 59,344,227,242,933.82/8,385,906.96
  6. Step 6: Final answer
    x = 7,076,661.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.