Finding the Fourth Proportional to 15,623,115.27, 21,558,947.97 and 8,653,379.67
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Solution
The fourth proportional to 15,623,115.27, 21,558,947.97 and 8,653,379.67 is: 11,941,137.14
Step by Step Solution
- Step 1: Write the proportion equation
15,623,115.27 : 21,558,947.97 = 8,653,379.67 : x - Step 2: Convert to fraction form
15,623,115.27/21,558,947.97 = 8,653,379.67/x - Step 3: Cross multiply
15,623,115.27x = 21,558,947.97 × 8,653,379.67 - Step 4: Simplify right side
15,623,115.27x = 186,557,762,070,185.75 - Step 5: Solve for x
x = 186,557,762,070,185.75/15,623,115.27 - Step 6: Final answer
x = 11,941,137.14
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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.