Finding the Fourth Proportional to 159,843,450.63, 220,583,959.74 and 86,504,592.63
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Solution
The fourth proportional to 159,843,450.63, 220,583,959.74 and 86,504,592.63 is: 119,376,336.68
Step by Step Solution
- Step 1: Write the proportion equation
159,843,450.63 : 220,583,959.74 = 86,504,592.63 : x - Step 2: Convert to fraction form
159,843,450.63/220,583,959.74 = 86,504,592.63/x - Step 3: Cross multiply
159,843,450.63x = 220,583,959.74 × 86,504,592.63 - Step 4: Simplify right side
159,843,450.63x = 19,081,525,578,021,020 - Step 5: Solve for x
x = 19,081,525,578,021,020/159,843,450.63 - Step 6: Final answer
x = 119,376,336.68
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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.