Home / 356,156,664.09-491,496,243.05-197,397,036.86

Finding the Fourth Proportional to 356,156,664.09, 491,496,243.05 and 197,397,036.86

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Solution

The fourth proportional to 356,156,664.09, 491,496,243.05 and 197,397,036.86 is: 272,407,936.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,156,664.09 : 491,496,243.05 = 197,397,036.86 : x
  2. Step 2: Convert to fraction form
    356,156,664.09/491,496,243.05 = 197,397,036.86/x
  3. Step 3: Cross multiply
    356,156,664.09x = 491,496,243.05 × 197,397,036.86
  4. Step 4: Simplify right side
    356,156,664.09x = 97,019,902,004,291,008
  5. Step 5: Solve for x
    x = 97,019,902,004,291,008/356,156,664.09
  6. Step 6: Final answer
    x = 272,407,936.69

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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.