Home / 120,861,346.80-181,292,020.20-40,082,314.80

Finding the Fourth Proportional to 120,861,346.80, 181,292,020.20 and 40,082,314.80

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Solution

The fourth proportional to 120,861,346.80, 181,292,020.20 and 40,082,314.80 is: 60,123,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,861,346.80 : 181,292,020.20 = 40,082,314.80 : x
  2. Step 2: Convert to fraction form
    120,861,346.80/181,292,020.20 = 40,082,314.80/x
  3. Step 3: Cross multiply
    120,861,346.80x = 181,292,020.20 × 40,082,314.80
  4. Step 4: Simplify right side
    120,861,346.80x = 7,266,603,824,384,358
  5. Step 5: Solve for x
    x = 7,266,603,824,384,358/120,861,346.80
  6. Step 6: Final answer
    x = 60,123,472.20

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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.