Home / 7,978,231,817.10-11,967,347,725.65-4,672,243,644.30

Finding the Fourth Proportional to 7,978,231,817.10, 11,967,347,725.65 and 4,672,243,644.30

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Solution

The fourth proportional to 7,978,231,817.10, 11,967,347,725.65 and 4,672,243,644.30 is: 7,008,365,466.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,231,817.10 : 11,967,347,725.65 = 4,672,243,644.30 : x
  2. Step 2: Convert to fraction form
    7,978,231,817.10/11,967,347,725.65 = 4,672,243,644.30/x
  3. Step 3: Cross multiply
    7,978,231,817.10x = 11,967,347,725.65 × 4,672,243,644.30
  4. Step 4: Simplify right side
    7,978,231,817.10x = 55,914,364,350,296,276,992
  5. Step 5: Solve for x
    x = 55,914,364,350,296,276,992/7,978,231,817.10
  6. Step 6: Final answer
    x = 7,008,365,466.45

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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.