Home / 217,118,238.76-299,625,484.02-117,998,991.28

Finding the Fourth Proportional to 217,118,238.76, 299,625,484.02 and 117,998,991.28

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Solution

The fourth proportional to 217,118,238.76, 299,625,484.02 and 117,998,991.28 is: 162,839,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,118,238.76 : 299,625,484.02 = 117,998,991.28 : x
  2. Step 2: Convert to fraction form
    217,118,238.76/299,625,484.02 = 117,998,991.28/x
  3. Step 3: Cross multiply
    217,118,238.76x = 299,625,484.02 × 117,998,991.28
  4. Step 4: Simplify right side
    217,118,238.76x = 35,355,504,874,643,632
  5. Step 5: Solve for x
    x = 35,355,504,874,643,632/217,118,238.76
  6. Step 6: Final answer
    x = 162,839,865.86

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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.