Home / 256,408,656.20-353,845,177.37-138,933,955.30

Finding the Fourth Proportional to 256,408,656.20, 353,845,177.37 and 138,933,955.30

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Solution

The fourth proportional to 256,408,656.20, 353,845,177.37 and 138,933,955.30 is: 191,729,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,408,656.20 : 353,845,177.37 = 138,933,955.30 : x
  2. Step 2: Convert to fraction form
    256,408,656.20/353,845,177.37 = 138,933,955.30/x
  3. Step 3: Cross multiply
    256,408,656.20x = 353,845,177.37 × 138,933,955.30
  4. Step 4: Simplify right side
    256,408,656.20x = 49,161,110,056,744,896
  5. Step 5: Solve for x
    x = 49,161,110,056,744,896/256,408,656.20
  6. Step 6: Final answer
    x = 191,729,525.77

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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.