Home / 172,164,331.80-258,315,704.10-69,936,370.20

Finding the Fourth Proportional to 172,164,331.80, 258,315,704.10 and 69,936,370.20

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Solution

The fourth proportional to 172,164,331.80, 258,315,704.10 and 69,936,370.20 is: 104,932,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,164,331.80 : 258,315,704.10 = 69,936,370.20 : x
  2. Step 2: Convert to fraction form
    172,164,331.80/258,315,704.10 = 69,936,370.20/x
  3. Step 3: Cross multiply
    172,164,331.80x = 258,315,704.10 × 69,936,370.20
  4. Step 4: Simplify right side
    172,164,331.80x = 18,065,662,710,411,260
  5. Step 5: Solve for x
    x = 18,065,662,710,411,260/172,164,331.80
  6. Step 6: Final answer
    x = 104,932,668.23

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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.