Finding the Fourth Proportional to 54,015,942.40, 74,541,994.72 and 29,236,125.20
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Solution
The fourth proportional to 54,015,942.40, 74,541,994.72 and 29,236,125.20 is: 40,345,849.64
Step by Step Solution
- Step 1: Write the proportion equation
54,015,942.40 : 74,541,994.72 = 29,236,125.20 : x - Step 2: Convert to fraction form
54,015,942.40/74,541,994.72 = 29,236,125.20/x - Step 3: Cross multiply
54,015,942.40x = 74,541,994.72 × 29,236,125.20 - Step 4: Simplify right side
54,015,942.40x = 2,179,319,090,291,658.75 - Step 5: Solve for x
x = 2,179,319,090,291,658.75/54,015,942.40 - Step 6: Final answer
x = 40,345,849.64
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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.