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Finding the Fourth Proportional to 247,797,696.80, 371,802,833.40 and 126,629,148.80

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Solution

The fourth proportional to 247,797,696.80, 371,802,833.40 and 126,629,148.80 is: 189,998,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,797,696.80 : 371,802,833.40 = 126,629,148.80 : x
  2. Step 2: Convert to fraction form
    247,797,696.80/371,802,833.40 = 126,629,148.80/x
  3. Step 3: Cross multiply
    247,797,696.80x = 371,802,833.40 × 126,629,148.80
  4. Step 4: Simplify right side
    247,797,696.80x = 47,081,076,314,870,208
  5. Step 5: Solve for x
    x = 47,081,076,314,870,208/247,797,696.80
  6. Step 6: Final answer
    x = 189,998,038.41

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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.