Home / 172,465,422.80-258,698,134.20-155,459,310.80

Finding the Fourth Proportional to 172,465,422.80, 258,698,134.20 and 155,459,310.80

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Solution

The fourth proportional to 172,465,422.80, 258,698,134.20 and 155,459,310.80 is: 233,188,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,465,422.80 : 258,698,134.20 = 155,459,310.80 : x
  2. Step 2: Convert to fraction form
    172,465,422.80/258,698,134.20 = 155,459,310.80/x
  3. Step 3: Cross multiply
    172,465,422.80x = 258,698,134.20 × 155,459,310.80
  4. Step 4: Simplify right side
    172,465,422.80x = 40,217,033,647,977,912
  5. Step 5: Solve for x
    x = 40,217,033,647,977,912/172,465,422.80
  6. Step 6: Final answer
    x = 233,188,966.20

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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.