Home / 279,919,670.28-419,831,650.08-75,399,915.84

Finding the Fourth Proportional to 279,919,670.28, 419,831,650.08 and 75,399,915.84

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Solution

The fourth proportional to 279,919,670.28, 419,831,650.08 and 75,399,915.84 is: 113,086,983.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,919,670.28 : 419,831,650.08 = 75,399,915.84 : x
  2. Step 2: Convert to fraction form
    279,919,670.28/419,831,650.08 = 75,399,915.84/x
  3. Step 3: Cross multiply
    279,919,670.28x = 419,831,650.08 × 75,399,915.84
  4. Step 4: Simplify right side
    279,919,670.28x = 31,655,271,083,000,328
  5. Step 5: Solve for x
    x = 31,655,271,083,000,328/279,919,670.28
  6. Step 6: Final answer
    x = 113,086,983.32

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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.