Home / 139,538,633.62-192,563,316.96-77,673,586.78

Finding the Fourth Proportional to 139,538,633.62, 192,563,316.96 and 77,673,586.78

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Solution

The fourth proportional to 139,538,633.62, 192,563,316.96 and 77,673,586.78 is: 107,189,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,633.62 : 192,563,316.96 = 77,673,586.78 : x
  2. Step 2: Convert to fraction form
    139,538,633.62/192,563,316.96 = 77,673,586.78/x
  3. Step 3: Cross multiply
    139,538,633.62x = 192,563,316.96 × 77,673,586.78
  4. Step 4: Simplify right side
    139,538,633.62x = 14,957,083,510,537,206
  5. Step 5: Solve for x
    x = 14,957,083,510,537,206/139,538,633.62
  6. Step 6: Final answer
    x = 107,189,551.18

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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.