Home / 172,469,823.40-258,704,735.10-81,770,559.40

Finding the Fourth Proportional to 172,469,823.40, 258,704,735.10 and 81,770,559.40

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Solution

The fourth proportional to 172,469,823.40, 258,704,735.10 and 81,770,559.40 is: 122,655,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,469,823.40 : 258,704,735.10 = 81,770,559.40 : x
  2. Step 2: Convert to fraction form
    172,469,823.40/258,704,735.10 = 81,770,559.40/x
  3. Step 3: Cross multiply
    172,469,823.40x = 258,704,735.10 × 81,770,559.40
  4. Step 4: Simplify right side
    172,469,823.40x = 21,154,430,908,555,816
  5. Step 5: Solve for x
    x = 21,154,430,908,555,816/172,469,823.40
  6. Step 6: Final answer
    x = 122,655,839.10

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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.