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Finding the Fourth Proportional to 84,085,843.70, 125,889,617.10 and 84,085,843.70

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Solution

The fourth proportional to 84,085,843.70, 125,889,617.10 and 84,085,843.70 is: 125,889,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,085,843.70 : 125,889,617.10 = 84,085,843.70 : x
  2. Step 2: Convert to fraction form
    84,085,843.70/125,889,617.10 = 84,085,843.70/x
  3. Step 3: Cross multiply
    84,085,843.70x = 125,889,617.10 × 84,085,843.70
  4. Step 4: Simplify right side
    84,085,843.70x = 10,585,534,666,923,448
  5. Step 5: Solve for x
    x = 10,585,534,666,923,448/84,085,843.70
  6. Step 6: Final answer
    x = 125,889,617.10

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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.