Home / 172,436,192.80-258,654,289.20-155,430,080.80

Finding the Fourth Proportional to 172,436,192.80, 258,654,289.20 and 155,430,080.80

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Solution

The fourth proportional to 172,436,192.80, 258,654,289.20 and 155,430,080.80 is: 233,145,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436,192.80 : 258,654,289.20 = 155,430,080.80 : x
  2. Step 2: Convert to fraction form
    172,436,192.80/258,654,289.20 = 155,430,080.80/x
  3. Step 3: Cross multiply
    172,436,192.80x = 258,654,289.20 × 155,430,080.80
  4. Step 4: Simplify right side
    172,436,192.80x = 40,202,657,069,622,568
  5. Step 5: Solve for x
    x = 40,202,657,069,622,568/172,436,192.80
  6. Step 6: Final answer
    x = 233,145,121.20

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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.