Home / 172,509,843.26-258,845,570.91-85,023,668.31

Finding the Fourth Proportional to 172,509,843.26, 258,845,570.91 and 85,023,668.31

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Solution

The fourth proportional to 172,509,843.26, 258,845,570.91 and 85,023,668.31 is: 127,575,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,509,843.26 : 258,845,570.91 = 85,023,668.31 : x
  2. Step 2: Convert to fraction form
    172,509,843.26/258,845,570.91 = 85,023,668.31/x
  3. Step 3: Cross multiply
    172,509,843.26x = 258,845,570.91 × 85,023,668.31
  4. Step 4: Simplify right side
    172,509,843.26x = 22,007,999,964,564,424
  5. Step 5: Solve for x
    x = 22,007,999,964,564,424/172,509,843.26
  6. Step 6: Final answer
    x = 127,575,328.74

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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.