Home / 425,644,902.20-638,467,353.30-416,078,964.20

Finding the Fourth Proportional to 425,644,902.20, 638,467,353.30 and 416,078,964.20

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Solution

The fourth proportional to 425,644,902.20, 638,467,353.30 and 416,078,964.20 is: 624,118,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,644,902.20 : 638,467,353.30 = 416,078,964.20 : x
  2. Step 2: Convert to fraction form
    425,644,902.20/638,467,353.30 = 416,078,964.20/x
  3. Step 3: Cross multiply
    425,644,902.20x = 638,467,353.30 × 416,078,964.20
  4. Step 4: Simplify right side
    425,644,902.20x = 265,652,835,036,579,424
  5. Step 5: Solve for x
    x = 265,652,835,036,579,424/425,644,902.20
  6. Step 6: Final answer
    x = 624,118,446.30

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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.