Home / 78,933,489-118,398,908.34-23,601,447.78

Finding the Fourth Proportional to 78,933,489, 118,398,908.34 and 23,601,447.78

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Solution

The fourth proportional to 78,933,489, 118,398,908.34 and 23,601,447.78 is: 35,401,775.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,933,489 : 118,398,908.34 = 23,601,447.78 : x
  2. Step 2: Convert to fraction form
    78,933,489/118,398,908.34 = 23,601,447.78/x
  3. Step 3: Cross multiply
    78,933,489x = 118,398,908.34 × 23,601,447.78
  4. Step 4: Simplify right side
    78,933,489x = 2,794,385,652,395,516.50
  5. Step 5: Solve for x
    x = 2,794,385,652,395,516.50/78,933,489
  6. Step 6: Final answer
    x = 35,401,775.44

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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.