Home / 120,090,967.21-165,724,309.51-67,167,548.53

Finding the Fourth Proportional to 120,090,967.21, 165,724,309.51 and 67,167,548.53

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Solution

The fourth proportional to 120,090,967.21, 165,724,309.51 and 67,167,548.53 is: 92,690,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,090,967.21 : 165,724,309.51 = 67,167,548.53 : x
  2. Step 2: Convert to fraction form
    120,090,967.21/165,724,309.51 = 67,167,548.53/x
  3. Step 3: Cross multiply
    120,090,967.21x = 165,724,309.51 × 67,167,548.53
  4. Step 4: Simplify right side
    120,090,967.21x = 11,131,295,601,622,550
  5. Step 5: Solve for x
    x = 11,131,295,601,622,550/120,090,967.21
  6. Step 6: Final answer
    x = 92,690,531.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.