Home / 20,298,126.80-30,447,190.20-5,152,058.30

Finding the Fourth Proportional to 20,298,126.80, 30,447,190.20 and 5,152,058.30

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Solution

The fourth proportional to 20,298,126.80, 30,447,190.20 and 5,152,058.30 is: 7,728,087.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298,126.80 : 30,447,190.20 = 5,152,058.30 : x
  2. Step 2: Convert to fraction form
    20,298,126.80/30,447,190.20 = 5,152,058.30/x
  3. Step 3: Cross multiply
    20,298,126.80x = 30,447,190.20 × 5,152,058.30
  4. Step 4: Simplify right side
    20,298,126.80x = 156,865,698,981,588.66
  5. Step 5: Solve for x
    x = 156,865,698,981,588.66/20,298,126.80
  6. Step 6: Final answer
    x = 7,728,087.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.