Home / 172,112,802.03-258,245,441.88-90,212,216.28

Finding the Fourth Proportional to 172,112,802.03, 258,245,441.88 and 90,212,216.28

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Solution

The fourth proportional to 172,112,802.03, 258,245,441.88 and 90,212,216.28 is: 135,358,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,112,802.03 : 258,245,441.88 = 90,212,216.28 : x
  2. Step 2: Convert to fraction form
    172,112,802.03/258,245,441.88 = 90,212,216.28/x
  3. Step 3: Cross multiply
    172,112,802.03x = 258,245,441.88 × 90,212,216.28
  4. Step 4: Simplify right side
    172,112,802.03x = 23,296,893,656,202,728
  5. Step 5: Solve for x
    x = 23,296,893,656,202,728/172,112,802.03
  6. Step 6: Final answer
    x = 135,358,284.69

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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.