Home / 85,088,383.05-117,422,211.81-49,331,772.72

Finding the Fourth Proportional to 85,088,383.05, 117,422,211.81 and 49,331,772.72

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Solution

The fourth proportional to 85,088,383.05, 117,422,211.81 and 49,331,772.72 is: 68,077,987.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,088,383.05 : 117,422,211.81 = 49,331,772.72 : x
  2. Step 2: Convert to fraction form
    85,088,383.05/117,422,211.81 = 49,331,772.72/x
  3. Step 3: Cross multiply
    85,088,383.05x = 117,422,211.81 × 49,331,772.72
  4. Step 4: Simplify right side
    85,088,383.05x = 5,792,645,865,290,620
  5. Step 5: Solve for x
    x = 5,792,645,865,290,620/85,088,383.05
  6. Step 6: Final answer
    x = 68,077,987.35

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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.