Home / 139,163,147.67-192,039,882.48-77,287,472.04

Finding the Fourth Proportional to 139,163,147.67, 192,039,882.48 and 77,287,472.04

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Solution

The fourth proportional to 139,163,147.67, 192,039,882.48 and 77,287,472.04 is: 106,653,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,147.67 : 192,039,882.48 = 77,287,472.04 : x
  2. Step 2: Convert to fraction form
    139,163,147.67/192,039,882.48 = 77,287,472.04/x
  3. Step 3: Cross multiply
    139,163,147.67x = 192,039,882.48 × 77,287,472.04
  4. Step 4: Simplify right side
    139,163,147.67x = 14,842,277,047,737,886
  5. Step 5: Solve for x
    x = 14,842,277,047,737,886/139,163,147.67
  6. Step 6: Final answer
    x = 106,653,789.43

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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.