Finding the Fourth Proportional to 493,081,286.74, 680,463,187.62 and 281,383,901.84
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Solution
The fourth proportional to 493,081,286.74, 680,463,187.62 and 281,383,901.84 is: 388,316,068.65
Step by Step Solution
- Step 1: Write the proportion equation
493,081,286.74 : 680,463,187.62 = 281,383,901.84 : x - Step 2: Convert to fraction form
493,081,286.74/680,463,187.62 = 281,383,901.84/x - Step 3: Cross multiply
493,081,286.74x = 680,463,187.62 × 281,383,901.84 - Step 4: Simplify right side
493,081,286.74x = 191,471,386,790,999,552 - Step 5: Solve for x
x = 191,471,386,790,999,552/493,081,286.74 - Step 6: Final answer
x = 388,316,068.65
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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.