Home / 13,980,822.36-19,292,305.68-7,785,401.28

Finding the Fourth Proportional to 13,980,822.36, 19,292,305.68 and 7,785,401.28

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Solution

The fourth proportional to 13,980,822.36, 19,292,305.68 and 7,785,401.28 is: 10,743,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980,822.36 : 19,292,305.68 = 7,785,401.28 : x
  2. Step 2: Convert to fraction form
    13,980,822.36/19,292,305.68 = 7,785,401.28/x
  3. Step 3: Cross multiply
    13,980,822.36x = 19,292,305.68 × 7,785,401.28
  4. Step 4: Simplify right side
    13,980,822.36x = 150,198,341,335,223.28
  5. Step 5: Solve for x
    x = 150,198,341,335,223.28/13,980,822.36
  6. Step 6: Final answer
    x = 10,743,169.28

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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.