Home / 78,059,369.52-117,078,425.28-20,546,824.56

Finding the Fourth Proportional to 78,059,369.52, 117,078,425.28 and 20,546,824.56

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Solution

The fourth proportional to 78,059,369.52, 117,078,425.28 and 20,546,824.56 is: 30,817,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,059,369.52 : 117,078,425.28 = 20,546,824.56 : x
  2. Step 2: Convert to fraction form
    78,059,369.52/117,078,425.28 = 20,546,824.56/x
  3. Step 3: Cross multiply
    78,059,369.52x = 117,078,425.28 × 20,546,824.56
  4. Step 4: Simplify right side
    78,059,369.52x = 2,405,589,863,989,228.50
  5. Step 5: Solve for x
    x = 2,405,589,863,989,228.50/78,059,369.52
  6. Step 6: Final answer
    x = 30,817,439.07

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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.