Home / 256,005,296.08-353,288,245.32-138,530,627.92

Finding the Fourth Proportional to 256,005,296.08, 353,288,245.32 and 138,530,627.92

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Solution

The fourth proportional to 256,005,296.08, 353,288,245.32 and 138,530,627.92 is: 191,172,773.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,005,296.08 : 353,288,245.32 = 138,530,627.92 : x
  2. Step 2: Convert to fraction form
    256,005,296.08/353,288,245.32 = 138,530,627.92/x
  3. Step 3: Cross multiply
    256,005,296.08x = 353,288,245.32 × 138,530,627.92
  4. Step 4: Simplify right side
    256,005,296.08x = 48,941,242,460,934,592
  5. Step 5: Solve for x
    x = 48,941,242,460,934,592/256,005,296.08
  6. Step 6: Final answer
    x = 191,172,773.42

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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.