Finding the Fourth Proportional to 18,644,573.91, 25,730,805.15 and 11,302,716.50
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Solution
The fourth proportional to 18,644,573.91, 25,730,805.15 and 11,302,716.50 is: 15,598,532.70
Step by Step Solution
- Step 1: Write the proportion equation
18,644,573.91 : 25,730,805.15 = 11,302,716.50 : x - Step 2: Convert to fraction form
18,644,573.91/25,730,805.15 = 11,302,716.50/x - Step 3: Cross multiply
18,644,573.91x = 25,730,805.15 × 11,302,716.50 - Step 4: Simplify right side
18,644,573.91x = 290,827,995,798,535.94 - Step 5: Solve for x
x = 290,827,995,798,535.94/18,644,573.91 - Step 6: Final answer
x = 15,598,532.70
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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.