Home / 172,388,999.10-258,709,469.85-121,370,663.10

Finding the Fourth Proportional to 172,388,999.10, 258,709,469.85 and 121,370,663.10

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Solution

The fourth proportional to 172,388,999.10, 258,709,469.85 and 121,370,663.10 is: 182,144,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,388,999.10 : 258,709,469.85 = 121,370,663.10 : x
  2. Step 2: Convert to fraction form
    172,388,999.10/258,709,469.85 = 121,370,663.10/x
  3. Step 3: Cross multiply
    172,388,999.10x = 258,709,469.85 × 121,370,663.10
  4. Step 4: Simplify right side
    172,388,999.10x = 31,399,739,905,943,956
  5. Step 5: Solve for x
    x = 31,399,739,905,943,956/172,388,999.10
  6. Step 6: Final answer
    x = 182,144,684.81

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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.