Home / 9,991,111.19-13,786,963.83-5,640,627.51

Finding the Fourth Proportional to 9,991,111.19, 13,786,963.83 and 5,640,627.51

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Solution

The fourth proportional to 9,991,111.19, 13,786,963.83 and 5,640,627.51 is: 7,783,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991,111.19 : 13,786,963.83 = 5,640,627.51 : x
  2. Step 2: Convert to fraction form
    9,991,111.19/13,786,963.83 = 5,640,627.51/x
  3. Step 3: Cross multiply
    9,991,111.19x = 13,786,963.83 × 5,640,627.51
  4. Step 4: Simplify right side
    9,991,111.19x = 77,767,127,458,872.95
  5. Step 5: Solve for x
    x = 77,767,127,458,872.95/9,991,111.19
  6. Step 6: Final answer
    x = 7,783,631.47

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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.