Home / 20,187,782.30-30,261,990.45-11,543,008.70

Finding the Fourth Proportional to 20,187,782.30, 30,261,990.45 and 11,543,008.70

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Solution

The fourth proportional to 20,187,782.30, 30,261,990.45 and 11,543,008.70 is: 17,303,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,782.30 : 30,261,990.45 = 11,543,008.70 : x
  2. Step 2: Convert to fraction form
    20,187,782.30/30,261,990.45 = 11,543,008.70/x
  3. Step 3: Cross multiply
    20,187,782.30x = 30,261,990.45 × 11,543,008.70
  4. Step 4: Simplify right side
    20,187,782.30x = 349,314,419,043,666.88
  5. Step 5: Solve for x
    x = 349,314,419,043,666.88/20,187,782.30
  6. Step 6: Final answer
    x = 17,303,258.67

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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.