Home / 30,930,168.76-42,683,660.97-16,992,426.22

Finding the Fourth Proportional to 30,930,168.76, 42,683,660.97 and 16,992,426.22

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Solution

The fourth proportional to 30,930,168.76, 42,683,660.97 and 16,992,426.22 is: 23,449,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,930,168.76 : 42,683,660.97 = 16,992,426.22 : x
  2. Step 2: Convert to fraction form
    30,930,168.76/42,683,660.97 = 16,992,426.22/x
  3. Step 3: Cross multiply
    30,930,168.76x = 42,683,660.97 × 16,992,426.22
  4. Step 4: Simplify right side
    30,930,168.76x = 725,298,959,832,218.50
  5. Step 5: Solve for x
    x = 725,298,959,832,218.50/30,930,168.76
  6. Step 6: Final answer
    x = 23,449,563.61

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Double scale
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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.