Home / 20,790,720.54-31,033,801.44-18,336,381.66

Finding the Fourth Proportional to 20,790,720.54, 31,033,801.44 and 18,336,381.66

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Solution

The fourth proportional to 20,790,720.54, 31,033,801.44 and 18,336,381.66 is: 27,370,269.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,720.54 : 31,033,801.44 = 18,336,381.66 : x
  2. Step 2: Convert to fraction form
    20,790,720.54/31,033,801.44 = 18,336,381.66/x
  3. Step 3: Cross multiply
    20,790,720.54x = 31,033,801.44 × 18,336,381.66
  4. Step 4: Simplify right side
    20,790,720.54x = 569,047,627,564,497.62
  5. Step 5: Solve for x
    x = 569,047,627,564,497.62/20,790,720.54
  6. Step 6: Final answer
    x = 27,370,269.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.