Home / 20,142,009.20-30,213,013.80-4,995,940.70

Finding the Fourth Proportional to 20,142,009.20, 30,213,013.80 and 4,995,940.70

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Solution

The fourth proportional to 20,142,009.20, 30,213,013.80 and 4,995,940.70 is: 7,493,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,009.20 : 30,213,013.80 = 4,995,940.70 : x
  2. Step 2: Convert to fraction form
    20,142,009.20/30,213,013.80 = 4,995,940.70/x
  3. Step 3: Cross multiply
    20,142,009.20x = 30,213,013.80 × 4,995,940.70
  4. Step 4: Simplify right side
    20,142,009.20x = 150,942,425,313,081.66
  5. Step 5: Solve for x
    x = 150,942,425,313,081.66/20,142,009.20
  6. Step 6: Final answer
    x = 7,493,911.05

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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.