Home / 340,512,972.40-510,769,458.60-311,456,435.73

Finding the Fourth Proportional to 340,512,972.40, 510,769,458.60 and 311,456,435.73

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Solution

The fourth proportional to 340,512,972.40, 510,769,458.60 and 311,456,435.73 is: 467,184,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,512,972.40 : 510,769,458.60 = 311,456,435.73 : x
  2. Step 2: Convert to fraction form
    340,512,972.40/510,769,458.60 = 311,456,435.73/x
  3. Step 3: Cross multiply
    340,512,972.40x = 510,769,458.60 × 311,456,435.73
  4. Step 4: Simplify right side
    340,512,972.40x = 159,082,435,055,297,824
  5. Step 5: Solve for x
    x = 159,082,435,055,297,824/340,512,972.40
  6. Step 6: Final answer
    x = 467,184,653.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.