Finding the Fourth Proportional to 15,841,039.62, 21,856,887.99 and 8,965,521.66
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Solution
The fourth proportional to 15,841,039.62, 21,856,887.99 and 8,965,521.66 is: 12,370,299.39
Step by Step Solution
- Step 1: Write the proportion equation
15,841,039.62 : 21,856,887.99 = 8,965,521.66 : x - Step 2: Convert to fraction form
15,841,039.62/21,856,887.99 = 8,965,521.66/x - Step 3: Cross multiply
15,841,039.62x = 21,856,887.99 × 8,965,521.66 - Step 4: Simplify right side
15,841,039.62x = 195,958,402,694,538.84 - Step 5: Solve for x
x = 195,958,402,694,538.84/15,841,039.62 - Step 6: Final answer
x = 12,370,299.39
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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.