Finding the Fourth Proportional to 209,744,447.18, 289,464,575.38 and 115,676,996.62
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Solution
The fourth proportional to 209,744,447.18, 289,464,575.38 and 115,676,996.62 is: 159,643,762.48
Step by Step Solution
- Step 1: Write the proportion equation
209,744,447.18 : 289,464,575.38 = 115,676,996.62 : x - Step 2: Convert to fraction form
209,744,447.18/289,464,575.38 = 115,676,996.62/x - Step 3: Cross multiply
209,744,447.18x = 289,464,575.38 × 115,676,996.62 - Step 4: Simplify right side
209,744,447.18x = 33,484,392,707,841,996 - Step 5: Solve for x
x = 33,484,392,707,841,996/209,744,447.18 - Step 6: Final answer
x = 159,643,762.48
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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.