Home / 139,538,026.20-192,562,476.46-77,672,979.38

Finding the Fourth Proportional to 139,538,026.20, 192,562,476.46 and 77,672,979.38

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Solution

The fourth proportional to 139,538,026.20, 192,562,476.46 and 77,672,979.38 is: 107,188,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,026.20 : 192,562,476.46 = 77,672,979.38 : x
  2. Step 2: Convert to fraction form
    139,538,026.20/192,562,476.46 = 77,672,979.38/x
  3. Step 3: Cross multiply
    139,538,026.20x = 192,562,476.46 × 77,672,979.38
  4. Step 4: Simplify right side
    139,538,026.20x = 14,956,901,263,439,316
  5. Step 5: Solve for x
    x = 14,956,901,263,439,316/139,538,026.20
  6. Step 6: Final answer
    x = 107,188,711.71

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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.