Home / 117,220,143.12-161,773,481.52-65,026,006.80

Finding the Fourth Proportional to 117,220,143.12, 161,773,481.52 and 65,026,006.80

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Solution

The fourth proportional to 117,220,143.12, 161,773,481.52 and 65,026,006.80 is: 89,741,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,220,143.12 : 161,773,481.52 = 65,026,006.80 : x
  2. Step 2: Convert to fraction form
    117,220,143.12/161,773,481.52 = 65,026,006.80/x
  3. Step 3: Cross multiply
    117,220,143.12x = 161,773,481.52 × 65,026,006.80
  4. Step 4: Simplify right side
    117,220,143.12x = 10,519,483,509,379,194
  5. Step 5: Solve for x
    x = 10,519,483,509,379,194/117,220,143.12
  6. Step 6: Final answer
    x = 89,741,261.44

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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.