Home / 9,989,470.67-13,785,469.38-5,405,792.04

Finding the Fourth Proportional to 9,989,470.67, 13,785,469.38 and 5,405,792.04

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Solution

The fourth proportional to 9,989,470.67, 13,785,469.38 and 5,405,792.04 is: 7,459,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,470.67 : 13,785,469.38 = 5,405,792.04 : x
  2. Step 2: Convert to fraction form
    9,989,470.67/13,785,469.38 = 5,405,792.04/x
  3. Step 3: Cross multiply
    9,989,470.67x = 13,785,469.38 × 5,405,792.04
  4. Step 4: Simplify right side
    9,989,470.67x = 74,521,380,642,067.73
  5. Step 5: Solve for x
    x = 74,521,380,642,067.73/9,989,470.67
  6. Step 6: Final answer
    x = 7,459,992.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.