Home / 199,321,203.80-298,981,805.70-126,301,210.40

Finding the Fourth Proportional to 199,321,203.80, 298,981,805.70 and 126,301,210.40

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Solution

The fourth proportional to 199,321,203.80, 298,981,805.70 and 126,301,210.40 is: 189,451,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,321,203.80 : 298,981,805.70 = 126,301,210.40 : x
  2. Step 2: Convert to fraction form
    199,321,203.80/298,981,805.70 = 126,301,210.40/x
  3. Step 3: Cross multiply
    199,321,203.80x = 298,981,805.70 × 126,301,210.40
  4. Step 4: Simplify right side
    199,321,203.80x = 37,761,763,947,487,616
  5. Step 5: Solve for x
    x = 37,761,763,947,487,616/199,321,203.80
  6. Step 6: Final answer
    x = 189,451,815.60

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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.