Home / 129,193,479,618.06-178,279,563,377.07-72,096,308,883.66

Finding the Fourth Proportional to 129,193,479,618.06, 178,279,563,377.07 and 72,096,308,883.66

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Solution

The fourth proportional to 129,193,479,618.06, 178,279,563,377.07 and 72,096,308,883.66 is: 99,488,755,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,193,479,618.06 : 178,279,563,377.07 = 72,096,308,883.66 : x
  2. Step 2: Convert to fraction form
    129,193,479,618.06/178,279,563,377.07 = 72,096,308,883.66/x
  3. Step 3: Cross multiply
    129,193,479,618.06x = 178,279,563,377.07 × 72,096,308,883.66
  4. Step 4: Simplify right side
    129,193,479,618.06x = 12,853,298,468,877,278,117,888
  5. Step 5: Solve for x
    x = 12,853,298,468,877,278,117,888/129,193,479,618.06
  6. Step 6: Final answer
    x = 99,488,755,213.31

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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.