Finding the Fourth Proportional to 7,620,862.54, 11,476,913.71 and 6,940,618.06
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Solution
The fourth proportional to 7,620,862.54, 11,476,913.71 and 6,940,618.06 is: 10,452,474.92
Step by Step Solution
- Step 1: Write the proportion equation
7,620,862.54 : 11,476,913.71 = 6,940,618.06 : x - Step 2: Convert to fraction form
7,620,862.54/11,476,913.71 = 6,940,618.06/x - Step 3: Cross multiply
7,620,862.54x = 11,476,913.71 × 6,940,618.06 - Step 4: Simplify right side
7,620,862.54x = 79,656,874,568,687.61 - Step 5: Solve for x
x = 79,656,874,568,687.61/7,620,862.54 - Step 6: Final answer
x = 10,452,474.92
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.