Home / 256,241,649.83-353,611,628.46-138,764,254.82

Finding the Fourth Proportional to 256,241,649.83, 353,611,628.46 and 138,764,254.82

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Solution

The fourth proportional to 256,241,649.83, 353,611,628.46 and 138,764,254.82 is: 191,493,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,241,649.83 : 353,611,628.46 = 138,764,254.82 : x
  2. Step 2: Convert to fraction form
    256,241,649.83/353,611,628.46 = 138,764,254.82/x
  3. Step 3: Cross multiply
    256,241,649.83x = 353,611,628.46 × 138,764,254.82
  4. Step 4: Simplify right side
    256,241,649.83x = 49,068,654,117,170,544
  5. Step 5: Solve for x
    x = 49,068,654,117,170,544/256,241,649.83
  6. Step 6: Final answer
    x = 191,493,670.72

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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.