Home / 356,405,818.77-491,831,251.02-197,635,064.40

Finding the Fourth Proportional to 356,405,818.77, 491,831,251.02 and 197,635,064.40

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Solution

The fourth proportional to 356,405,818.77, 491,831,251.02 and 197,635,064.40 is: 272,731,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,405,818.77 : 491,831,251.02 = 197,635,064.40 : x
  2. Step 2: Convert to fraction form
    356,405,818.77/491,831,251.02 = 197,635,064.40/x
  3. Step 3: Cross multiply
    356,405,818.77x = 491,831,251.02 × 197,635,064.40
  4. Step 4: Simplify right side
    356,405,818.77x = 97,203,100,969,270,272
  5. Step 5: Solve for x
    x = 97,203,100,969,270,272/356,405,818.77
  6. Step 6: Final answer
    x = 272,731,520.78

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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.