Home / 315,339,321.24-432,007,642.28-303,549,619.77

Finding the Fourth Proportional to 315,339,321.24, 432,007,642.28 and 303,549,619.77

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Solution

The fourth proportional to 315,339,321.24, 432,007,642.28 and 303,549,619.77 is: 415,856,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,339,321.24 : 432,007,642.28 = 303,549,619.77 : x
  2. Step 2: Convert to fraction form
    315,339,321.24/432,007,642.28 = 303,549,619.77/x
  3. Step 3: Cross multiply
    315,339,321.24x = 432,007,642.28 × 303,549,619.77
  4. Step 4: Simplify right side
    315,339,321.24x = 131,135,755,552,587,056
  5. Step 5: Solve for x
    x = 131,135,755,552,587,056/315,339,321.24
  6. Step 6: Final answer
    x = 415,856,021.50

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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.