Finding the Fourth Proportional to 19,748,472.64, 27,241,921.20 and 11,487,604.96
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Solution
The fourth proportional to 19,748,472.64, 27,241,921.20 and 11,487,604.96 is: 15,846,513.03
Step by Step Solution
- Step 1: Write the proportion equation
19,748,472.64 : 27,241,921.20 = 11,487,604.96 : x - Step 2: Convert to fraction form
19,748,472.64/27,241,921.20 = 11,487,604.96/x - Step 3: Cross multiply
19,748,472.64x = 27,241,921.20 × 11,487,604.96 - Step 4: Simplify right side
19,748,472.64x = 312,944,429,097,049.19 - Step 5: Solve for x
x = 312,944,429,097,049.19/19,748,472.64 - Step 6: Final answer
x = 15,846,513.03
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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.