Finding the Fourth Proportional to 12,837,855.97, 17,718,057.60 and 7,944,654.07
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Solution
The fourth proportional to 12,837,855.97, 17,718,057.60 and 7,944,654.07 is: 10,964,746.66
Step by Step Solution
- Step 1: Write the proportion equation
12,837,855.97 : 17,718,057.60 = 7,944,654.07 : x - Step 2: Convert to fraction form
12,837,855.97/17,718,057.60 = 7,944,654.07/x - Step 3: Cross multiply
12,837,855.97x = 17,718,057.60 × 7,944,654.07 - Step 4: Simplify right side
12,837,855.97x = 140,763,838,424,334.44 - Step 5: Solve for x
x = 140,763,838,424,334.44/12,837,855.97 - Step 6: Final answer
x = 10,964,746.66
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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.