Home / 143,455,443-197,968,557.42-91,947,219

Finding the Fourth Proportional to 143,455,443, 197,968,557.42 and 91,947,219

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Solution

The fourth proportional to 143,455,443, 197,968,557.42 and 91,947,219 is: 126,887,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,455,443 : 197,968,557.42 = 91,947,219 : x
  2. Step 2: Convert to fraction form
    143,455,443/197,968,557.42 = 91,947,219/x
  3. Step 3: Cross multiply
    143,455,443x = 197,968,557.42 × 91,947,219
  4. Step 4: Simplify right side
    143,455,443x = 18,202,658,304,210,812
  5. Step 5: Solve for x
    x = 18,202,658,304,210,812/143,455,443
  6. Step 6: Final answer
    x = 126,887,191.75

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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.