Finding the Fourth Proportional to 19,475,517.55, 26,875,419.99 and 11,215,891.06
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Solution
The fourth proportional to 19,475,517.55, 26,875,419.99 and 11,215,891.06 is: 15,477,472.27
Step by Step Solution
- Step 1: Write the proportion equation
19,475,517.55 : 26,875,419.99 = 11,215,891.06 : x - Step 2: Convert to fraction form
19,475,517.55/26,875,419.99 = 11,215,891.06/x - Step 3: Cross multiply
19,475,517.55x = 26,875,419.99 × 11,215,891.06 - Step 4: Simplify right side
19,475,517.55x = 301,431,782,799,586.31 - Step 5: Solve for x
x = 301,431,782,799,586.31/19,475,517.55 - Step 6: Final answer
x = 15,477,472.27
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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.