Home / 142,663,945.26-213,928,468.08-55,266,396.78

Finding the Fourth Proportional to 142,663,945.26, 213,928,468.08 and 55,266,396.78

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Solution

The fourth proportional to 142,663,945.26, 213,928,468.08 and 55,266,396.78 is: 82,873,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,663,945.26 : 213,928,468.08 = 55,266,396.78 : x
  2. Step 2: Convert to fraction form
    142,663,945.26/213,928,468.08 = 55,266,396.78/x
  3. Step 3: Cross multiply
    142,663,945.26x = 213,928,468.08 × 55,266,396.78
  4. Step 4: Simplify right side
    142,663,945.26x = 11,823,055,599,446,846
  5. Step 5: Solve for x
    x = 11,823,055,599,446,846/142,663,945.26
  6. Step 6: Final answer
    x = 82,873,465.88

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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.