Home / 9,989,645.36-13,785,745.32-5,405,965.52

Finding the Fourth Proportional to 9,989,645.36, 13,785,745.32 and 5,405,965.52

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Solution

The fourth proportional to 9,989,645.36, 13,785,745.32 and 5,405,965.52 is: 7,460,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,645.36 : 13,785,745.32 = 5,405,965.52 : x
  2. Step 2: Convert to fraction form
    9,989,645.36/13,785,745.32 = 5,405,965.52/x
  3. Step 3: Cross multiply
    9,989,645.36x = 13,785,745.32 × 5,405,965.52
  4. Step 4: Simplify right side
    9,989,645.36x = 74,525,263,867,421.36
  5. Step 5: Solve for x
    x = 74,525,263,867,421.36/9,989,645.36
  6. Step 6: Final answer
    x = 7,460,251.21

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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.