Home / 172,465,588.80-258,698,383.20-86,217,307.20

Finding the Fourth Proportional to 172,465,588.80, 258,698,383.20 and 86,217,307.20

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Solution

The fourth proportional to 172,465,588.80, 258,698,383.20 and 86,217,307.20 is: 129,325,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,465,588.80 : 258,698,383.20 = 86,217,307.20 : x
  2. Step 2: Convert to fraction form
    172,465,588.80/258,698,383.20 = 86,217,307.20/x
  3. Step 3: Cross multiply
    172,465,588.80x = 258,698,383.20 × 86,217,307.20
  4. Step 4: Simplify right side
    172,465,588.80x = 22,304,277,976,497,720
  5. Step 5: Solve for x
    x = 22,304,277,976,497,720/172,465,588.80
  6. Step 6: Final answer
    x = 129,325,960.80

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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.