Home / 6,985,664.64-9,640,200.96-3,929,878.08

Finding the Fourth Proportional to 6,985,664.64, 9,640,200.96 and 3,929,878.08

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Solution

The fourth proportional to 6,985,664.64, 9,640,200.96 and 3,929,878.08 is: 5,423,222.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,664.64 : 9,640,200.96 = 3,929,878.08 : x
  2. Step 2: Convert to fraction form
    6,985,664.64/9,640,200.96 = 3,929,878.08/x
  3. Step 3: Cross multiply
    6,985,664.64x = 9,640,200.96 × 3,929,878.08
  4. Step 4: Simplify right side
    6,985,664.64x = 37,884,814,439,498.96
  5. Step 5: Solve for x
    x = 37,884,814,439,498.96/6,985,664.64
  6. Step 6: Final answer
    x = 5,423,222.61

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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.