Home / 143,238,505.17-214,836,171.36-91,782,684.12

Finding the Fourth Proportional to 143,238,505.17, 214,836,171.36 and 91,782,684.12

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Solution

The fourth proportional to 143,238,505.17, 214,836,171.36 and 91,782,684.12 is: 137,660,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,238,505.17 : 214,836,171.36 = 91,782,684.12 : x
  2. Step 2: Convert to fraction form
    143,238,505.17/214,836,171.36 = 91,782,684.12/x
  3. Step 3: Cross multiply
    143,238,505.17x = 214,836,171.36 × 91,782,684.12
  4. Step 4: Simplify right side
    143,238,505.17x = 19,718,240,453,485,072
  5. Step 5: Solve for x
    x = 19,718,240,453,485,072/143,238,505.17
  6. Step 6: Final answer
    x = 137,660,194.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.