Finding the Fourth Proportional to 7,920,972.63, 11,879,556.48 and 3,657,044.07
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Solution
The fourth proportional to 7,920,972.63, 11,879,556.48 and 3,657,044.07 is: 5,484,687.75
Step by Step Solution
- Step 1: Write the proportion equation
7,920,972.63 : 11,879,556.48 = 3,657,044.07 : x - Step 2: Convert to fraction form
7,920,972.63/11,879,556.48 = 3,657,044.07/x - Step 3: Cross multiply
7,920,972.63x = 11,879,556.48 × 3,657,044.07 - Step 4: Simplify right side
7,920,972.63x = 43,444,061,579,414.07 - Step 5: Solve for x
x = 43,444,061,579,414.07/7,920,972.63 - Step 6: Final answer
x = 5,484,687.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.