Home / 18,531,719.66-27,781,133.24-7,009,126.22

Finding the Fourth Proportional to 18,531,719.66, 27,781,133.24 and 7,009,126.22

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Solution

The fourth proportional to 18,531,719.66, 27,781,133.24 and 7,009,126.22 is: 10,507,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531,719.66 : 27,781,133.24 = 7,009,126.22 : x
  2. Step 2: Convert to fraction form
    18,531,719.66/27,781,133.24 = 7,009,126.22/x
  3. Step 3: Cross multiply
    18,531,719.66x = 27,781,133.24 × 7,009,126.22
  4. Step 4: Simplify right side
    18,531,719.66x = 194,721,469,413,797.53
  5. Step 5: Solve for x
    x = 194,721,469,413,797.53/18,531,719.66
  6. Step 6: Final answer
    x = 10,507,468.98

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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.