Home / 305,928,495.17-422,168,121.87-173,769,080.25

Finding the Fourth Proportional to 305,928,495.17, 422,168,121.87 and 173,769,080.25

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Solution

The fourth proportional to 305,928,495.17, 422,168,121.87 and 173,769,080.25 is: 239,793,832.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,928,495.17 : 422,168,121.87 = 173,769,080.25 : x
  2. Step 2: Convert to fraction form
    305,928,495.17/422,168,121.87 = 173,769,080.25/x
  3. Step 3: Cross multiply
    305,928,495.17x = 422,168,121.87 × 173,769,080.25
  4. Step 4: Simplify right side
    305,928,495.17x = 73,359,766,250,129,616
  5. Step 5: Solve for x
    x = 73,359,766,250,129,616/305,928,495.17
  6. Step 6: Final answer
    x = 239,793,832.25

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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.