Home / 315,335,028.58-432,001,772.52-303,545,329.54

Finding the Fourth Proportional to 315,335,028.58, 432,001,772.52 and 303,545,329.54

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Solution

The fourth proportional to 315,335,028.58, 432,001,772.52 and 303,545,329.54 is: 415,850,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,335,028.58 : 432,001,772.52 = 303,545,329.54 : x
  2. Step 2: Convert to fraction form
    315,335,028.58/432,001,772.52 = 303,545,329.54/x
  3. Step 3: Cross multiply
    315,335,028.58x = 432,001,772.52 × 303,545,329.54
  4. Step 4: Simplify right side
    315,335,028.58x = 131,132,120,401,447,520
  5. Step 5: Solve for x
    x = 131,132,120,401,447,520/315,335,028.58
  6. Step 6: Final answer
    x = 415,850,154.65

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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.