Finding the Fourth Proportional to 122,299,068.26, 168,767,654.13 and 66,544,718.15
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Solution
The fourth proportional to 122,299,068.26, 168,767,654.13 and 66,544,718.15 is: 91,828,957.79
Step by Step Solution
- Step 1: Write the proportion equation
122,299,068.26 : 168,767,654.13 = 66,544,718.15 : x - Step 2: Convert to fraction form
122,299,068.26/168,767,654.13 = 66,544,718.15/x - Step 3: Cross multiply
122,299,068.26x = 168,767,654.13 × 66,544,718.15 - Step 4: Simplify right side
122,299,068.26x = 11,230,595,976,073,696 - Step 5: Solve for x
x = 11,230,595,976,073,696/122,299,068.26 - Step 6: Final answer
x = 91,828,957.79
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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.