Home / 6,911,979.84-9,538,538.16-3,856,194.72

Finding the Fourth Proportional to 6,911,979.84, 9,538,538.16 and 3,856,194.72

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Solution

The fourth proportional to 6,911,979.84, 9,538,538.16 and 3,856,194.72 is: 5,321,552.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911,979.84 : 9,538,538.16 = 3,856,194.72 : x
  2. Step 2: Convert to fraction form
    6,911,979.84/9,538,538.16 = 3,856,194.72/x
  3. Step 3: Cross multiply
    6,911,979.84x = 9,538,538.16 × 3,856,194.72
  4. Step 4: Simplify right side
    6,911,979.84x = 36,782,460,489,110.52
  5. Step 5: Solve for x
    x = 36,782,460,489,110.52/6,911,979.84
  6. Step 6: Final answer
    x = 5,321,552.05

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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.