Home / 30,002,843.70-45,004,265.55-20,755,770.30

Finding the Fourth Proportional to 30,002,843.70, 45,004,265.55 and 20,755,770.30

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Solution

The fourth proportional to 30,002,843.70, 45,004,265.55 and 20,755,770.30 is: 31,133,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002,843.70 : 45,004,265.55 = 20,755,770.30 : x
  2. Step 2: Convert to fraction form
    30,002,843.70/45,004,265.55 = 20,755,770.30/x
  3. Step 3: Cross multiply
    30,002,843.70x = 45,004,265.55 × 20,755,770.30
  4. Step 4: Simplify right side
    30,002,843.70x = 934,098,198,276,003.12
  5. Step 5: Solve for x
    x = 934,098,198,276,003.12/30,002,843.70
  6. Step 6: Final answer
    x = 31,133,655.45

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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.