Home / 9,989,921.67-13,786,091.97-5,406,243.04

Finding the Fourth Proportional to 9,989,921.67, 13,786,091.97 and 5,406,243.04

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Solution

The fourth proportional to 9,989,921.67, 13,786,091.97 and 5,406,243.04 is: 7,460,615.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,921.67 : 13,786,091.97 = 5,406,243.04 : x
  2. Step 2: Convert to fraction form
    9,989,921.67/13,786,091.97 = 5,406,243.04/x
  3. Step 3: Cross multiply
    9,989,921.67x = 13,786,091.97 × 5,406,243.04
  4. Step 4: Simplify right side
    9,989,921.67x = 74,530,963,758,571.59
  5. Step 5: Solve for x
    x = 74,530,963,758,571.59/9,989,921.67
  6. Step 6: Final answer
    x = 7,460,615.43

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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.