Home / 13,572,021.45-18,729,515.03-7,377,082.73

Finding the Fourth Proportional to 13,572,021.45, 18,729,515.03 and 7,377,082.73

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Solution

The fourth proportional to 13,572,021.45, 18,729,515.03 and 7,377,082.73 is: 10,180,442.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572,021.45 : 18,729,515.03 = 7,377,082.73 : x
  2. Step 2: Convert to fraction form
    13,572,021.45/18,729,515.03 = 7,377,082.73/x
  3. Step 3: Cross multiply
    13,572,021.45x = 18,729,515.03 × 7,377,082.73
  4. Step 4: Simplify right side
    13,572,021.45x = 138,169,181,738,555.42
  5. Step 5: Solve for x
    x = 138,169,181,738,555.42/13,572,021.45
  6. Step 6: Final answer
    x = 10,180,442.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.