Finding the Fourth Proportional to 27,788,213.21, 38,335,158.27 and 16,771,441.28
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Solution
The fourth proportional to 27,788,213.21, 38,335,158.27 and 16,771,441.28 is: 23,136,998.80
Step by Step Solution
- Step 1: Write the proportion equation
27,788,213.21 : 38,335,158.27 = 16,771,441.28 : x - Step 2: Convert to fraction form
27,788,213.21/38,335,158.27 = 16,771,441.28/x - Step 3: Cross multiply
27,788,213.21x = 38,335,158.27 × 16,771,441.28 - Step 4: Simplify right side
27,788,213.21x = 642,935,855,693,135.62 - Step 5: Solve for x
x = 642,935,855,693,135.62/27,788,213.21 - Step 6: Final answer
x = 23,136,998.80
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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.