Home / 78,345,916.48-117,440,040.32-32,321,353.60

Finding the Fourth Proportional to 78,345,916.48, 117,440,040.32 and 32,321,353.60

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Solution

The fourth proportional to 78,345,916.48, 117,440,040.32 and 32,321,353.60 is: 48,449,507.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345,916.48 : 117,440,040.32 = 32,321,353.60 : x
  2. Step 2: Convert to fraction form
    78,345,916.48/117,440,040.32 = 32,321,353.60/x
  3. Step 3: Cross multiply
    78,345,916.48x = 117,440,040.32 × 32,321,353.60
  4. Step 4: Simplify right side
    78,345,916.48x = 3,795,821,069,980,977
  5. Step 5: Solve for x
    x = 3,795,821,069,980,977/78,345,916.48
  6. Step 6: Final answer
    x = 48,449,507.52

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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.