Home / 178,644,765.60-267,967,148.40-76,419,136.80

Finding the Fourth Proportional to 178,644,765.60, 267,967,148.40 and 76,419,136.80

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Solution

The fourth proportional to 178,644,765.60, 267,967,148.40 and 76,419,136.80 is: 114,628,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,644,765.60 : 267,967,148.40 = 76,419,136.80 : x
  2. Step 2: Convert to fraction form
    178,644,765.60/267,967,148.40 = 76,419,136.80/x
  3. Step 3: Cross multiply
    178,644,765.60x = 267,967,148.40 × 76,419,136.80
  4. Step 4: Simplify right side
    178,644,765.60x = 20,477,818,171,485,500
  5. Step 5: Solve for x
    x = 20,477,818,171,485,500/178,644,765.60
  6. Step 6: Final answer
    x = 114,628,705.20

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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.