Home / 20,142,009.70-30,213,014.55-4,995,941.20

Finding the Fourth Proportional to 20,142,009.70, 30,213,014.55 and 4,995,941.20

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Solution

The fourth proportional to 20,142,009.70, 30,213,014.55 and 4,995,941.20 is: 7,493,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,009.70 : 30,213,014.55 = 4,995,941.20 : x
  2. Step 2: Convert to fraction form
    20,142,009.70/30,213,014.55 = 4,995,941.20/x
  3. Step 3: Cross multiply
    20,142,009.70x = 30,213,014.55 × 4,995,941.20
  4. Step 4: Simplify right side
    20,142,009.70x = 150,942,444,166,544.47
  5. Step 5: Solve for x
    x = 150,942,444,166,544.47/20,142,009.70
  6. Step 6: Final answer
    x = 7,493,911.80

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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.