Finding the Fourth Proportional to 18,575,264.88, 27,866,244.79 and 7,643,523.51
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Solution
The fourth proportional to 18,575,264.88, 27,866,244.79 and 7,643,523.51 is: 11,466,662.71
Step by Step Solution
- Step 1: Write the proportion equation
18,575,264.88 : 27,866,244.79 = 7,643,523.51 : x - Step 2: Convert to fraction form
18,575,264.88/27,866,244.79 = 7,643,523.51/x - Step 3: Cross multiply
18,575,264.88x = 27,866,244.79 × 7,643,523.51 - Step 4: Simplify right side
18,575,264.88x = 212,996,297,187,780 - Step 5: Solve for x
x = 212,996,297,187,780/18,575,264.88 - Step 6: Final answer
x = 11,466,662.71
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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.