Home / 172,112,814.45-258,245,460.36-90,212,228.64

Finding the Fourth Proportional to 172,112,814.45, 258,245,460.36 and 90,212,228.64

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Solution

The fourth proportional to 172,112,814.45, 258,245,460.36 and 90,212,228.64 is: 135,358,303.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,112,814.45 : 258,245,460.36 = 90,212,228.64 : x
  2. Step 2: Convert to fraction form
    172,112,814.45/258,245,460.36 = 90,212,228.64/x
  3. Step 3: Cross multiply
    172,112,814.45x = 258,245,460.36 × 90,212,228.64
  4. Step 4: Simplify right side
    172,112,814.45x = 23,296,898,515,238,380
  5. Step 5: Solve for x
    x = 23,296,898,515,238,380/172,112,814.45
  6. Step 6: Final answer
    x = 135,358,303.16

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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.