Home / 217,017,168.71-299,485,791.75-117,898,625.39

Finding the Fourth Proportional to 217,017,168.71, 299,485,791.75 and 117,898,625.39

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Solution

The fourth proportional to 217,017,168.71, 299,485,791.75 and 117,898,625.39 is: 162,701,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,017,168.71 : 299,485,791.75 = 117,898,625.39 : x
  2. Step 2: Convert to fraction form
    217,017,168.71/299,485,791.75 = 117,898,625.39/x
  3. Step 3: Cross multiply
    217,017,168.71x = 299,485,791.75 × 117,898,625.39
  4. Step 4: Simplify right side
    217,017,168.71x = 35,308,963,170,105,500
  5. Step 5: Solve for x
    x = 35,308,963,170,105,500/217,017,168.71
  6. Step 6: Final answer
    x = 162,701,243.32

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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.