Home / 315,335,420.20-432,002,308.91-303,545,721.16

Finding the Fourth Proportional to 315,335,420.20, 432,002,308.91 and 303,545,721.16

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Solution

The fourth proportional to 315,335,420.20, 432,002,308.91 and 303,545,721.16 is: 415,850,691.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,335,420.20 : 432,002,308.91 = 303,545,721.16 : x
  2. Step 2: Convert to fraction form
    315,335,420.20/432,002,308.91 = 303,545,721.16/x
  3. Step 3: Cross multiply
    315,335,420.20x = 432,002,308.91 × 303,545,721.16
  4. Step 4: Simplify right side
    315,335,420.20x = 131,132,452,400,871,056
  5. Step 5: Solve for x
    x = 131,132,452,400,871,056/315,335,420.20
  6. Step 6: Final answer
    x = 415,850,691.04

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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.