Home / 6,985,593.91-9,640,105-3,929,808.16

Finding the Fourth Proportional to 6,985,593.91, 9,640,105 and 3,929,808.16

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Solution

The fourth proportional to 6,985,593.91, 9,640,105 and 3,929,808.16 is: 5,423,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,593.91 : 9,640,105 = 3,929,808.16 : x
  2. Step 2: Convert to fraction form
    6,985,593.91/9,640,105 = 3,929,808.16/x
  3. Step 3: Cross multiply
    6,985,593.91x = 9,640,105 × 3,929,808.16
  4. Step 4: Simplify right side
    6,985,593.91x = 37,883,763,292,256.80
  5. Step 5: Solve for x
    x = 37,883,763,292,256.80/6,985,593.91
  6. Step 6: Final answer
    x = 5,423,127.05

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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.