Finding the Fourth Proportional to 12,474,994.63, 17,215,519.27 and 7,042,486.63
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Solution
The fourth proportional to 12,474,994.63, 17,215,519.27 and 7,042,486.63 is: 9,718,646.61
Step by Step Solution
- Step 1: Write the proportion equation
12,474,994.63 : 17,215,519.27 = 7,042,486.63 : x - Step 2: Convert to fraction form
12,474,994.63/17,215,519.27 = 7,042,486.63/x - Step 3: Cross multiply
12,474,994.63x = 17,215,519.27 × 7,042,486.63 - Step 4: Simplify right side
12,474,994.63x = 121,240,064,209,231.14 - Step 5: Solve for x
x = 121,240,064,209,231.14/12,474,994.63 - Step 6: Final answer
x = 9,718,646.61
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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.