Home / 78,487,599.80-117,801,383.70-46,099,004.60

Finding the Fourth Proportional to 78,487,599.80, 117,801,383.70 and 46,099,004.60

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Solution

The fourth proportional to 78,487,599.80, 117,801,383.70 and 46,099,004.60 is: 69,189,611.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,487,599.80 : 117,801,383.70 = 46,099,004.60 : x
  2. Step 2: Convert to fraction form
    78,487,599.80/117,801,383.70 = 46,099,004.60/x
  3. Step 3: Cross multiply
    78,487,599.80x = 117,801,383.70 × 46,099,004.60
  4. Step 4: Simplify right side
    78,487,599.80x = 5,430,526,529,072,665
  5. Step 5: Solve for x
    x = 5,430,526,529,072,665/78,487,599.80
  6. Step 6: Final answer
    x = 69,189,611.39

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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.