Home / 256,236,408.30-384,354,612.45-253,847,621.10

Finding the Fourth Proportional to 256,236,408.30, 384,354,612.45 and 253,847,621.10

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Solution

The fourth proportional to 256,236,408.30, 384,354,612.45 and 253,847,621.10 is: 380,771,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,236,408.30 : 384,354,612.45 = 253,847,621.10 : x
  2. Step 2: Convert to fraction form
    256,236,408.30/384,354,612.45 = 253,847,621.10/x
  3. Step 3: Cross multiply
    256,236,408.30x = 384,354,612.45 × 253,847,621.10
  4. Step 4: Simplify right side
    256,236,408.30x = 97,567,504,029,244,944
  5. Step 5: Solve for x
    x = 97,567,504,029,244,944/256,236,408.30
  6. Step 6: Final answer
    x = 380,771,431.65

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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.