Home / 78,427,832.88-117,440,195.40-48,043,579.44

Finding the Fourth Proportional to 78,427,832.88, 117,440,195.40 and 48,043,579.44

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Solution

The fourth proportional to 78,427,832.88, 117,440,195.40 and 48,043,579.44 is: 71,941,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,427,832.88 : 117,440,195.40 = 48,043,579.44 : x
  2. Step 2: Convert to fraction form
    78,427,832.88/117,440,195.40 = 48,043,579.44/x
  3. Step 3: Cross multiply
    78,427,832.88x = 117,440,195.40 × 48,043,579.44
  4. Step 4: Simplify right side
    78,427,832.88x = 5,642,247,357,149,023
  5. Step 5: Solve for x
    x = 5,642,247,357,149,023/78,427,832.88
  6. Step 6: Final answer
    x = 71,941,900.60

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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.