Home / 315,338,958.72-432,007,144.97-303,549,257.25

Finding the Fourth Proportional to 315,338,958.72, 432,007,144.97 and 303,549,257.25

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Solution

The fourth proportional to 315,338,958.72, 432,007,144.97 and 303,549,257.25 is: 415,855,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,338,958.72 : 432,007,144.97 = 303,549,257.25 : x
  2. Step 2: Convert to fraction form
    315,338,958.72/432,007,144.97 = 303,549,257.25/x
  3. Step 3: Cross multiply
    315,338,958.72x = 432,007,144.97 × 303,549,257.25
  4. Step 4: Simplify right side
    315,338,958.72x = 131,135,447,980,818,816
  5. Step 5: Solve for x
    x = 131,135,447,980,818,816/315,338,958.72
  6. Step 6: Final answer
    x = 415,855,524.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.