Finding the Fourth Proportional to 81,494,597.16, 112,425,446.74 and 48,436,060.64
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Solution
The fourth proportional to 81,494,597.16, 112,425,446.74 and 48,436,060.64 is: 66,819,714.99
Step by Step Solution
- Step 1: Write the proportion equation
81,494,597.16 : 112,425,446.74 = 48,436,060.64 : x - Step 2: Convert to fraction form
81,494,597.16/112,425,446.74 = 48,436,060.64/x - Step 3: Cross multiply
81,494,597.16x = 112,425,446.74 × 48,436,060.64 - Step 4: Simplify right side
81,494,597.16x = 5,445,445,755,777,730 - Step 5: Solve for x
x = 5,445,445,755,777,730/81,494,597.16 - Step 6: Final answer
x = 66,819,714.99
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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.