Home / 13,507,391.22-18,640,405.17-7,396,388.34

Finding the Fourth Proportional to 13,507,391.22, 18,640,405.17 and 7,396,388.34

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Solution

The fourth proportional to 13,507,391.22, 18,640,405.17 and 7,396,388.34 is: 10,207,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,391.22 : 18,640,405.17 = 7,396,388.34 : x
  2. Step 2: Convert to fraction form
    13,507,391.22/18,640,405.17 = 7,396,388.34/x
  3. Step 3: Cross multiply
    13,507,391.22x = 18,640,405.17 × 7,396,388.34
  4. Step 4: Simplify right side
    13,507,391.22x = 137,871,675,452,263.73
  5. Step 5: Solve for x
    x = 137,871,675,452,263.73/13,507,391.22
  6. Step 6: Final answer
    x = 10,207,128.32

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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.