Home / 6,985,608.14-9,640,124.55-3,929,822.39

Finding the Fourth Proportional to 6,985,608.14, 9,640,124.55 and 3,929,822.39

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Solution

The fourth proportional to 6,985,608.14, 9,640,124.55 and 3,929,822.39 is: 5,423,146.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,608.14 : 9,640,124.55 = 3,929,822.39 : x
  2. Step 2: Convert to fraction form
    6,985,608.14/9,640,124.55 = 3,929,822.39/x
  3. Step 3: Cross multiply
    6,985,608.14x = 9,640,124.55 × 3,929,822.39
  4. Step 4: Simplify right side
    6,985,608.14x = 37,883,977,250,778.05
  5. Step 5: Solve for x
    x = 37,883,977,250,778.05/6,985,608.14
  6. Step 6: Final answer
    x = 5,423,146.64

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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.