Home / 20,241,995.90-30,362,993.85-18,289,442.30

Finding the Fourth Proportional to 20,241,995.90, 30,362,993.85 and 18,289,442.30

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Solution

The fourth proportional to 20,241,995.90, 30,362,993.85 and 18,289,442.30 is: 27,434,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241,995.90 : 30,362,993.85 = 18,289,442.30 : x
  2. Step 2: Convert to fraction form
    20,241,995.90/30,362,993.85 = 18,289,442.30/x
  3. Step 3: Cross multiply
    20,241,995.90x = 30,362,993.85 × 18,289,442.30
  4. Step 4: Simplify right side
    20,241,995.90x = 555,322,224,074,829.88
  5. Step 5: Solve for x
    x = 555,322,224,074,829.88/20,241,995.90
  6. Step 6: Final answer
    x = 27,434,163.45

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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.