Home / 205,493,890.82-283,622,767.04-121,908,416.72

Finding the Fourth Proportional to 205,493,890.82, 283,622,767.04 and 121,908,416.72

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Solution

The fourth proportional to 205,493,890.82, 283,622,767.04 and 121,908,416.72 is: 168,258,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,493,890.82 : 283,622,767.04 = 121,908,416.72 : x
  2. Step 2: Convert to fraction form
    205,493,890.82/283,622,767.04 = 121,908,416.72/x
  3. Step 3: Cross multiply
    205,493,890.82x = 283,622,767.04 × 121,908,416.72
  4. Step 4: Simplify right side
    205,493,890.82x = 34,576,002,475,591,804
  5. Step 5: Solve for x
    x = 34,576,002,475,591,804/205,493,890.82
  6. Step 6: Final answer
    x = 168,258,055.45

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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.