Finding the Fourth Proportional to 84,251,134.60, 126,376,701.90 and 74,685,196.60
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Solution
The fourth proportional to 84,251,134.60, 126,376,701.90 and 74,685,196.60 is: 112,027,794.90
Step by Step Solution
- Step 1: Write the proportion equation
84,251,134.60 : 126,376,701.90 = 74,685,196.60 : x - Step 2: Convert to fraction form
84,251,134.60/126,376,701.90 = 74,685,196.60/x - Step 3: Cross multiply
84,251,134.60x = 126,376,701.90 × 74,685,196.60 - Step 4: Simplify right side
84,251,134.60x = 9,438,468,827,061,094 - Step 5: Solve for x
x = 9,438,468,827,061,094/84,251,134.60 - Step 6: Final answer
x = 112,027,794.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.