Home / 83,471,999.80-125,207,999.70-68,343,014.20

Finding the Fourth Proportional to 83,471,999.80, 125,207,999.70 and 68,343,014.20

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Solution

The fourth proportional to 83,471,999.80, 125,207,999.70 and 68,343,014.20 is: 102,514,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,471,999.80 : 125,207,999.70 = 68,343,014.20 : x
  2. Step 2: Convert to fraction form
    83,471,999.80/125,207,999.70 = 68,343,014.20/x
  3. Step 3: Cross multiply
    83,471,999.80x = 125,207,999.70 × 68,343,014.20
  4. Step 4: Simplify right side
    83,471,999.80x = 8,557,092,101,450,696
  5. Step 5: Solve for x
    x = 8,557,092,101,450,696/83,471,999.80
  6. Step 6: Final answer
    x = 102,514,521.30

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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.