Home / 445,175,999.40-667,763,999.10-397,558,885.80

Finding the Fourth Proportional to 445,175,999.40, 667,763,999.10 and 397,558,885.80

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Solution

The fourth proportional to 445,175,999.40, 667,763,999.10 and 397,558,885.80 is: 596,338,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,175,999.40 : 667,763,999.10 = 397,558,885.80 : x
  2. Step 2: Convert to fraction form
    445,175,999.40/667,763,999.10 = 397,558,885.80/x
  3. Step 3: Cross multiply
    445,175,999.40x = 667,763,999.10 × 397,558,885.80
  4. Step 4: Simplify right side
    445,175,999.40x = 265,475,511,459,548,224
  5. Step 5: Solve for x
    x = 265,475,511,459,548,224/445,175,999.40
  6. Step 6: Final answer
    x = 596,338,328.70

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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.