Home / 7,169,200.80-9,893,442.24-3,906,005.40

Finding the Fourth Proportional to 7,169,200.80, 9,893,442.24 and 3,906,005.40

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Solution

The fourth proportional to 7,169,200.80, 9,893,442.24 and 3,906,005.40 is: 5,390,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,200.80 : 9,893,442.24 = 3,906,005.40 : x
  2. Step 2: Convert to fraction form
    7,169,200.80/9,893,442.24 = 3,906,005.40/x
  3. Step 3: Cross multiply
    7,169,200.80x = 9,893,442.24 × 3,906,005.40
  4. Step 4: Simplify right side
    7,169,200.80x = 38,643,838,814,028.09
  5. Step 5: Solve for x
    x = 38,643,838,814,028.09/7,169,200.80
  6. Step 6: Final answer
    x = 5,390,257.56

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1.5x scale

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.