Finding the Fourth Proportional to 305,035,304.80, 420,994,734.63 and 186,026,939.92
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Solution
The fourth proportional to 305,035,304.80, 420,994,734.63 and 186,026,939.92 is: 256,745,238.91
Step by Step Solution
- Step 1: Write the proportion equation
305,035,304.80 : 420,994,734.63 = 186,026,939.92 : x - Step 2: Convert to fraction form
305,035,304.80/420,994,734.63 = 186,026,939.92/x - Step 3: Cross multiply
305,035,304.80x = 420,994,734.63 × 186,026,939.92 - Step 4: Simplify right side
305,035,304.80x = 78,316,362,204,721,216 - Step 5: Solve for x
x = 78,316,362,204,721,216/305,035,304.80 - Step 6: Final answer
x = 256,745,238.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.