Home / 78,149,015.42-117,241,378.76-27,030,991.10

Finding the Fourth Proportional to 78,149,015.42, 117,241,378.76 and 27,030,991.10

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Solution

The fourth proportional to 78,149,015.42, 117,241,378.76 and 27,030,991.10 is: 40,552,662.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,149,015.42 : 117,241,378.76 = 27,030,991.10 : x
  2. Step 2: Convert to fraction form
    78,149,015.42/117,241,378.76 = 27,030,991.10/x
  3. Step 3: Cross multiply
    78,149,015.42x = 117,241,378.76 × 27,030,991.10
  4. Step 4: Simplify right side
    78,149,015.42x = 3,169,150,665,294,659.50
  5. Step 5: Solve for x
    x = 3,169,150,665,294,659.50/78,149,015.42
  6. Step 6: Final answer
    x = 40,552,662.74

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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.