Home / 172,509,881.92-258,845,629.04-85,023,707.04

Finding the Fourth Proportional to 172,509,881.92, 258,845,629.04 and 85,023,707.04

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Solution

The fourth proportional to 172,509,881.92, 258,845,629.04 and 85,023,707.04 is: 127,575,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,509,881.92 : 258,845,629.04 = 85,023,707.04 : x
  2. Step 2: Convert to fraction form
    172,509,881.92/258,845,629.04 = 85,023,707.04/x
  3. Step 3: Cross multiply
    172,509,881.92x = 258,845,629.04 × 85,023,707.04
  4. Step 4: Simplify right side
    172,509,881.92x = 22,008,014,932,081,476
  5. Step 5: Solve for x
    x = 22,008,014,932,081,476/172,509,881.92
  6. Step 6: Final answer
    x = 127,575,386.91

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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.