Home / 628,456,603.20-867,297,019.74-349,998,125.82

Finding the Fourth Proportional to 628,456,603.20, 867,297,019.74 and 349,998,125.82

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Solution

The fourth proportional to 628,456,603.20, 867,297,019.74 and 349,998,125.82 is: 483,012,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,456,603.20 : 867,297,019.74 = 349,998,125.82 : x
  2. Step 2: Convert to fraction form
    628,456,603.20/867,297,019.74 = 349,998,125.82/x
  3. Step 3: Cross multiply
    628,456,603.20x = 867,297,019.74 × 349,998,125.82
  4. Step 4: Simplify right side
    628,456,603.20x = 303,552,331,438,271,552
  5. Step 5: Solve for x
    x = 303,552,331,438,271,552/628,456,603.20
  6. Step 6: Final answer
    x = 483,012,398.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.