Home / 81,505,507,199.26-122,314,106,654.70-28,446,540,313.36

Finding the Fourth Proportional to 81,505,507,199.26, 122,314,106,654.70 and 28,446,540,313.36

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Solution

The fourth proportional to 81,505,507,199.26, 122,314,106,654.70 and 28,446,540,313.36 is: 42,689,301,439.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505,507,199.26 : 122,314,106,654.70 = 28,446,540,313.36 : x
  2. Step 2: Convert to fraction form
    81,505,507,199.26/122,314,106,654.70 = 28,446,540,313.36/x
  3. Step 3: Cross multiply
    81,505,507,199.26x = 122,314,106,654.70 × 28,446,540,313.36
  4. Step 4: Simplify right side
    81,505,507,199.26x = 3,479,413,165,845,538,406,400
  5. Step 5: Solve for x
    x = 3,479,413,165,845,538,406,400/81,505,507,199.26
  6. Step 6: Final answer
    x = 42,689,301,439.95

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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.