Home / 140,703,804.69-194,171,268.88-77,983,951.87

Finding the Fourth Proportional to 140,703,804.69, 194,171,268.88 and 77,983,951.87

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Solution

The fourth proportional to 140,703,804.69, 194,171,268.88 and 77,983,951.87 is: 107,617,863.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703,804.69 : 194,171,268.88 = 77,983,951.87 : x
  2. Step 2: Convert to fraction form
    140,703,804.69/194,171,268.88 = 77,983,951.87/x
  3. Step 3: Cross multiply
    140,703,804.69x = 194,171,268.88 × 77,983,951.87
  4. Step 4: Simplify right side
    140,703,804.69x = 15,142,242,886,874,750
  5. Step 5: Solve for x
    x = 15,142,242,886,874,750/140,703,804.69
  6. Step 6: Final answer
    x = 107,617,863.78

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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.