Home / 5,154,408.95-7,112,660.85-2,831,181.40

Finding the Fourth Proportional to 5,154,408.95, 7,112,660.85 and 2,831,181.40

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Solution

The fourth proportional to 5,154,408.95, 7,112,660.85 and 2,831,181.40 is: 3,906,797.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154,408.95 : 7,112,660.85 = 2,831,181.40 : x
  2. Step 2: Convert to fraction form
    5,154,408.95/7,112,660.85 = 2,831,181.40/x
  3. Step 3: Cross multiply
    5,154,408.95x = 7,112,660.85 × 2,831,181.40
  4. Step 4: Simplify right side
    5,154,408.95x = 20,137,233,088,872.28
  5. Step 5: Solve for x
    x = 20,137,233,088,872.28/5,154,408.95
  6. Step 6: Final answer
    x = 3,906,797.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.