Home / 505,511,644.20-758,267,466.30-437,487,196.20

Finding the Fourth Proportional to 505,511,644.20, 758,267,466.30 and 437,487,196.20

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Solution

The fourth proportional to 505,511,644.20, 758,267,466.30 and 437,487,196.20 is: 656,230,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,511,644.20 : 758,267,466.30 = 437,487,196.20 : x
  2. Step 2: Convert to fraction form
    505,511,644.20/758,267,466.30 = 437,487,196.20/x
  3. Step 3: Cross multiply
    505,511,644.20x = 758,267,466.30 × 437,487,196.20
  4. Step 4: Simplify right side
    505,511,644.20x = 331,732,307,801,264,960
  5. Step 5: Solve for x
    x = 331,732,307,801,264,960/505,511,644.20
  6. Step 6: Final answer
    x = 656,230,794.30

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Double scale
Find fourth proportional to 505,511,645.20, 758,267,467.80 and 437,487,197.20
Similar ratio
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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.