Home / 315,335,420.70-432,002,309.59-303,545,721.66

Finding the Fourth Proportional to 315,335,420.70, 432,002,309.59 and 303,545,721.66

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Solution

The fourth proportional to 315,335,420.70, 432,002,309.59 and 303,545,721.66 is: 415,850,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,335,420.70 : 432,002,309.59 = 303,545,721.66 : x
  2. Step 2: Convert to fraction form
    315,335,420.70/432,002,309.59 = 303,545,721.66/x
  3. Step 3: Cross multiply
    315,335,420.70x = 432,002,309.59 × 303,545,721.66
  4. Step 4: Simplify right side
    315,335,420.70x = 131,132,452,823,283,296
  5. Step 5: Solve for x
    x = 131,132,452,823,283,296/315,335,420.70
  6. Step 6: Final answer
    x = 415,850,691.72

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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.