Finding the Fourth Proportional to 217,269,307.80, 325,903,961.70 and 102,478,051.80
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Solution
The fourth proportional to 217,269,307.80, 325,903,961.70 and 102,478,051.80 is: 153,717,077.70
Step by Step Solution
- Step 1: Write the proportion equation
217,269,307.80 : 325,903,961.70 = 102,478,051.80 : x - Step 2: Convert to fraction form
217,269,307.80/325,903,961.70 = 102,478,051.80/x - Step 3: Cross multiply
217,269,307.80x = 325,903,961.70 × 102,478,051.80 - Step 4: Simplify right side
217,269,307.80x = 33,398,003,068,917,812 - Step 5: Solve for x
x = 33,398,003,068,917,812/217,269,307.80 - Step 6: Final answer
x = 153,717,077.70
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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.