Home / 142,667,528.47-213,933,841.51-55,269,989.30

Finding the Fourth Proportional to 142,667,528.47, 213,933,841.51 and 55,269,989.30

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Solution

The fourth proportional to 142,667,528.47, 213,933,841.51 and 55,269,989.30 is: 82,878,853.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,667,528.47 : 213,933,841.51 = 55,269,989.30 : x
  2. Step 2: Convert to fraction form
    142,667,528.47/213,933,841.51 = 55,269,989.30/x
  3. Step 3: Cross multiply
    142,667,528.47x = 213,933,841.51 × 55,269,989.30
  4. Step 4: Simplify right side
    142,667,528.47x = 11,824,121,131,972,296
  5. Step 5: Solve for x
    x = 11,824,121,131,972,296/142,667,528.47
  6. Step 6: Final answer
    x = 82,878,853.09

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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.