Finding the Fourth Proportional to 11,240,172.92, 15,511,814.79 and 6,888,418.81
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Solution
The fourth proportional to 11,240,172.92, 15,511,814.79 and 6,888,418.81 is: 9,506,248.48
Step by Step Solution
- Step 1: Write the proportion equation
11,240,172.92 : 15,511,814.79 = 6,888,418.81 : x - Step 2: Convert to fraction form
11,240,172.92/15,511,814.79 = 6,888,418.81/x - Step 3: Cross multiply
11,240,172.92x = 15,511,814.79 × 6,888,418.81 - Step 4: Simplify right side
11,240,172.92x = 106,851,876,712,061.09 - Step 5: Solve for x
x = 106,851,876,712,061.09/11,240,172.92 - Step 6: Final answer
x = 9,506,248.48
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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.