Home / 172,436,942.80-258,655,414.20-155,430,830.80

Finding the Fourth Proportional to 172,436,942.80, 258,655,414.20 and 155,430,830.80

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Solution

The fourth proportional to 172,436,942.80, 258,655,414.20 and 155,430,830.80 is: 233,146,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436,942.80 : 258,655,414.20 = 155,430,830.80 : x
  2. Step 2: Convert to fraction form
    172,436,942.80/258,655,414.20 = 155,430,830.80/x
  3. Step 3: Cross multiply
    172,436,942.80x = 258,655,414.20 × 155,430,830.80
  4. Step 4: Simplify right side
    172,436,942.80x = 40,203,025,920,024,120
  5. Step 5: Solve for x
    x = 40,203,025,920,024,120/172,436,942.80
  6. Step 6: Final answer
    x = 233,146,246.20

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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.