Home / 122,247,921.15-168,686,802.39-82,641,624.54

Finding the Fourth Proportional to 122,247,921.15, 168,686,802.39 and 82,641,624.54

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Solution

The fourth proportional to 122,247,921.15, 168,686,802.39 and 82,641,624.54 is: 114,035,079.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,247,921.15 : 168,686,802.39 = 82,641,624.54 : x
  2. Step 2: Convert to fraction form
    122,247,921.15/168,686,802.39 = 82,641,624.54/x
  3. Step 3: Cross multiply
    122,247,921.15x = 168,686,802.39 × 82,641,624.54
  4. Step 4: Simplify right side
    122,247,921.15x = 13,940,551,387,967,554
  5. Step 5: Solve for x
    x = 13,940,551,387,967,554/122,247,921.15
  6. Step 6: Final answer
    x = 114,035,079.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.