Home / 172,436,190.30-258,654,285.45-155,430,078.30

Finding the Fourth Proportional to 172,436,190.30, 258,654,285.45 and 155,430,078.30

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Solution

The fourth proportional to 172,436,190.30, 258,654,285.45 and 155,430,078.30 is: 233,145,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436,190.30 : 258,654,285.45 = 155,430,078.30 : x
  2. Step 2: Convert to fraction form
    172,436,190.30/258,654,285.45 = 155,430,078.30/x
  3. Step 3: Cross multiply
    172,436,190.30x = 258,654,285.45 × 155,430,078.30
  4. Step 4: Simplify right side
    172,436,190.30x = 40,202,655,840,124,048
  5. Step 5: Solve for x
    x = 40,202,655,840,124,048/172,436,190.30
  6. Step 6: Final answer
    x = 233,145,117.45

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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.