Home / 18,942,115.40-28,415,246.70-18,344,918.60

Finding the Fourth Proportional to 18,942,115.40, 28,415,246.70 and 18,344,918.60

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Solution

The fourth proportional to 18,942,115.40, 28,415,246.70 and 18,344,918.60 is: 27,519,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942,115.40 : 28,415,246.70 = 18,344,918.60 : x
  2. Step 2: Convert to fraction form
    18,942,115.40/28,415,246.70 = 18,344,918.60/x
  3. Step 3: Cross multiply
    18,942,115.40x = 28,415,246.70 × 18,344,918.60
  4. Step 4: Simplify right side
    18,942,115.40x = 521,275,387,710,418.62
  5. Step 5: Solve for x
    x = 521,275,387,710,418.62/18,942,115.40
  6. Step 6: Final answer
    x = 27,519,386.12

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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.