Home / 155,395,736.82-214,446,630.60-85,780,952.28

Finding the Fourth Proportional to 155,395,736.82, 214,446,630.60 and 85,780,952.28

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Solution

The fourth proportional to 155,395,736.82, 214,446,630.60 and 85,780,952.28 is: 118,377,997.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,395,736.82 : 214,446,630.60 = 85,780,952.28 : x
  2. Step 2: Convert to fraction form
    155,395,736.82/214,446,630.60 = 85,780,952.28/x
  3. Step 3: Cross multiply
    155,395,736.82x = 214,446,630.60 × 85,780,952.28
  4. Step 4: Simplify right side
    155,395,736.82x = 18,395,436,186,105,388
  5. Step 5: Solve for x
    x = 18,395,436,186,105,388/155,395,736.82
  6. Step 6: Final answer
    x = 118,377,997.77

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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.