Home / 172,007,440.40-258,085,810.20-86,906,896.40

Finding the Fourth Proportional to 172,007,440.40, 258,085,810.20 and 86,906,896.40

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Solution

The fourth proportional to 172,007,440.40, 258,085,810.20 and 86,906,896.40 is: 130,398,061.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,007,440.40 : 258,085,810.20 = 86,906,896.40 : x
  2. Step 2: Convert to fraction form
    172,007,440.40/258,085,810.20 = 86,906,896.40/x
  3. Step 3: Cross multiply
    172,007,440.40x = 258,085,810.20 × 86,906,896.40
  4. Step 4: Simplify right side
    172,007,440.40x = 22,429,436,769,361,464
  5. Step 5: Solve for x
    x = 22,429,436,769,361,464/172,007,440.40
  6. Step 6: Final answer
    x = 130,398,061.37

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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.