Home / 115,310,482,865.80-172,965,724,298.70-90,543,537,176.20

Finding the Fourth Proportional to 115,310,482,865.80, 172,965,724,298.70 and 90,543,537,176.20

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Solution

The fourth proportional to 115,310,482,865.80, 172,965,724,298.70 and 90,543,537,176.20 is: 135,815,305,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,310,482,865.80 : 172,965,724,298.70 = 90,543,537,176.20 : x
  2. Step 2: Convert to fraction form
    115,310,482,865.80/172,965,724,298.70 = 90,543,537,176.20/x
  3. Step 3: Cross multiply
    115,310,482,865.80x = 172,965,724,298.70 × 90,543,537,176.20
  4. Step 4: Simplify right side
    115,310,482,865.80x = 15,660,928,488,247,704,682,496
  5. Step 5: Solve for x
    x = 15,660,928,488,247,704,682,496/115,310,482,865.80
  6. Step 6: Final answer
    x = 135,815,305,764.30

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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.