Home / 172,436,186.80-258,654,280.20-155,430,074.80

Finding the Fourth Proportional to 172,436,186.80, 258,654,280.20 and 155,430,074.80

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Solution

The fourth proportional to 172,436,186.80, 258,654,280.20 and 155,430,074.80 is: 233,145,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436,186.80 : 258,654,280.20 = 155,430,074.80 : x
  2. Step 2: Convert to fraction form
    172,436,186.80/258,654,280.20 = 155,430,074.80/x
  3. Step 3: Cross multiply
    172,436,186.80x = 258,654,280.20 × 155,430,074.80
  4. Step 4: Simplify right side
    172,436,186.80x = 40,202,654,118,826,160
  5. Step 5: Solve for x
    x = 40,202,654,118,826,160/172,436,186.80
  6. Step 6: Final answer
    x = 233,145,112.20

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1.5x scale

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.