Home / 115,231,153.36-172,670,028.52-78,296,003.32

Finding the Fourth Proportional to 115,231,153.36, 172,670,028.52 and 78,296,003.32

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Solution

The fourth proportional to 115,231,153.36, 172,670,028.52 and 78,296,003.32 is: 117,323,941.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,231,153.36 : 172,670,028.52 = 78,296,003.32 : x
  2. Step 2: Convert to fraction form
    115,231,153.36/172,670,028.52 = 78,296,003.32/x
  3. Step 3: Cross multiply
    115,231,153.36x = 172,670,028.52 × 78,296,003.32
  4. Step 4: Simplify right side
    115,231,153.36x = 13,519,373,126,266,414
  5. Step 5: Solve for x
    x = 13,519,373,126,266,414/115,231,153.36
  6. Step 6: Final answer
    x = 117,323,941.76

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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.