Home / 188,640,991.20-282,289,640.40-130,862,200.80

Finding the Fourth Proportional to 188,640,991.20, 282,289,640.40 and 130,862,200.80

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Solution

The fourth proportional to 188,640,991.20, 282,289,640.40 and 130,862,200.80 is: 195,827,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,640,991.20 : 282,289,640.40 = 130,862,200.80 : x
  2. Step 2: Convert to fraction form
    188,640,991.20/282,289,640.40 = 130,862,200.80/x
  3. Step 3: Cross multiply
    188,640,991.20x = 282,289,640.40 × 130,862,200.80
  4. Step 4: Simplify right side
    188,640,991.20x = 36,941,043,605,784,592
  5. Step 5: Solve for x
    x = 36,941,043,605,784,592/188,640,991.20
  6. Step 6: Final answer
    x = 195,827,234.42

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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.