Finding the Fourth Proportional to 157,511,065.68, 217,365,278.80 and 86,946,694.56
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Solution
The fourth proportional to 157,511,065.68, 217,365,278.80 and 86,946,694.56 is: 119,986,443.00
Step by Step Solution
- Step 1: Write the proportion equation
157,511,065.68 : 217,365,278.80 = 86,946,694.56 : x - Step 2: Convert to fraction form
157,511,065.68/217,365,278.80 = 86,946,694.56/x - Step 3: Cross multiply
157,511,065.68x = 217,365,278.80 × 86,946,694.56 - Step 4: Simplify right side
157,511,065.68x = 18,899,192,503,772,844 - Step 5: Solve for x
x = 18,899,192,503,772,844/157,511,065.68 - Step 6: Final answer
x = 119,986,443.00
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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.