Finding the Fourth Proportional to 305,035,304.54, 420,994,734.28 and 186,026,939.67
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Solution
The fourth proportional to 305,035,304.54, 420,994,734.28 and 186,026,939.67 is: 256,745,238.56
Step by Step Solution
- Step 1: Write the proportion equation
305,035,304.54 : 420,994,734.28 = 186,026,939.67 : x - Step 2: Convert to fraction form
305,035,304.54/420,994,734.28 = 186,026,939.67/x - Step 3: Cross multiply
305,035,304.54x = 420,994,734.28 × 186,026,939.67 - Step 4: Simplify right side
305,035,304.54x = 78,316,362,034,828,160 - Step 5: Solve for x
x = 78,316,362,034,828,160/305,035,304.54 - Step 6: Final answer
x = 256,745,238.56
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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.