Home / 155,344,231.80-233,165,646.90-78,753,742.20

Finding the Fourth Proportional to 155,344,231.80, 233,165,646.90 and 78,753,742.20

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Solution

The fourth proportional to 155,344,231.80, 233,165,646.90 and 78,753,742.20 is: 118,206,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,344,231.80 : 233,165,646.90 = 78,753,742.20 : x
  2. Step 2: Convert to fraction form
    155,344,231.80/233,165,646.90 = 78,753,742.20/x
  3. Step 3: Cross multiply
    155,344,231.80x = 233,165,646.90 × 78,753,742.20
  4. Step 4: Simplify right side
    155,344,231.80x = 18,362,667,245,858,832
  5. Step 5: Solve for x
    x = 18,362,667,245,858,832/155,344,231.80
  6. Step 6: Final answer
    x = 118,206,302.44

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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.