Home / 78,052,224.80-117,078,337.20-73,269,255.80

Finding the Fourth Proportional to 78,052,224.80, 117,078,337.20 and 73,269,255.80

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Solution

The fourth proportional to 78,052,224.80, 117,078,337.20 and 73,269,255.80 is: 109,903,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052,224.80 : 117,078,337.20 = 73,269,255.80 : x
  2. Step 2: Convert to fraction form
    78,052,224.80/117,078,337.20 = 73,269,255.80/x
  3. Step 3: Cross multiply
    78,052,224.80x = 117,078,337.20 × 73,269,255.80
  4. Step 4: Simplify right side
    78,052,224.80x = 8,578,242,636,945,456
  5. Step 5: Solve for x
    x = 8,578,242,636,945,456/78,052,224.80
  6. Step 6: Final answer
    x = 109,903,883.70

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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.