Finding the Fourth Proportional to 7,620,864.54, 11,476,916.73 and 6,940,620.06
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Solution
The fourth proportional to 7,620,864.54, 11,476,916.73 and 6,940,620.06 is: 10,452,477.94
Step by Step Solution
- Step 1: Write the proportion equation
7,620,864.54 : 11,476,916.73 = 6,940,620.06 : x - Step 2: Convert to fraction form
7,620,864.54/11,476,916.73 = 6,940,620.06/x - Step 3: Cross multiply
7,620,864.54x = 11,476,916.73 × 6,940,620.06 - Step 4: Simplify right side
7,620,864.54x = 79,656,918,483,187.61 - Step 5: Solve for x
x = 79,656,918,483,187.61/7,620,864.54 - Step 6: Final answer
x = 10,452,477.94
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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.