Home / 12,030,331.20-18,045,496.80-7,247,362.20

Finding the Fourth Proportional to 12,030,331.20, 18,045,496.80 and 7,247,362.20

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Solution

The fourth proportional to 12,030,331.20, 18,045,496.80 and 7,247,362.20 is: 10,871,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030,331.20 : 18,045,496.80 = 7,247,362.20 : x
  2. Step 2: Convert to fraction form
    12,030,331.20/18,045,496.80 = 7,247,362.20/x
  3. Step 3: Cross multiply
    12,030,331.20x = 18,045,496.80 × 7,247,362.20
  4. Step 4: Simplify right side
    12,030,331.20x = 130,782,251,388,540.97
  5. Step 5: Solve for x
    x = 130,782,251,388,540.97/12,030,331.20
  6. Step 6: Final answer
    x = 10,871,043.30

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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.