Home / 256,027,481-353,314,934.88-138,550,093.28

Finding the Fourth Proportional to 256,027,481, 353,314,934.88 and 138,550,093.28

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Solution

The fourth proportional to 256,027,481, 353,314,934.88 and 138,550,093.28 is: 191,197,511.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,027,481 : 353,314,934.88 = 138,550,093.28 : x
  2. Step 2: Convert to fraction form
    256,027,481/353,314,934.88 = 138,550,093.28/x
  3. Step 3: Cross multiply
    256,027,481x = 353,314,934.88 × 138,550,093.28
  4. Step 4: Simplify right side
    256,027,481x = 48,951,817,184,841,128
  5. Step 5: Solve for x
    x = 48,951,817,184,841,128/256,027,481
  6. Step 6: Final answer
    x = 191,197,511.27

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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.