Finding the Fourth Proportional to 19,873,612.12, 27,421,530.66 and 11,612,077.24
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Solution
The fourth proportional to 19,873,612.12, 27,421,530.66 and 11,612,077.24 is: 16,022,297.82
Step by Step Solution
- Step 1: Write the proportion equation
19,873,612.12 : 27,421,530.66 = 11,612,077.24 : x - Step 2: Convert to fraction form
19,873,612.12/27,421,530.66 = 11,612,077.24/x - Step 3: Cross multiply
19,873,612.12x = 27,421,530.66 × 11,612,077.24 - Step 4: Simplify right side
19,873,612.12x = 318,420,932,062,948.19 - Step 5: Solve for x
x = 318,420,932,062,948.19/19,873,612.12 - Step 6: Final answer
x = 16,022,297.82
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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.