Finding the Fourth Proportional to 157,770,874.42, 217,724,901.07 and 88,159,189.30
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Solution
The fourth proportional to 157,770,874.42, 217,724,901.07 and 88,159,189.30 is: 121,660,292.75
Step by Step Solution
- Step 1: Write the proportion equation
157,770,874.42 : 217,724,901.07 = 88,159,189.30 : x - Step 2: Convert to fraction form
157,770,874.42/217,724,901.07 = 88,159,189.30/x - Step 3: Cross multiply
157,770,874.42x = 217,724,901.07 × 88,159,189.30 - Step 4: Simplify right side
157,770,874.42x = 19,194,450,768,753,900 - Step 5: Solve for x
x = 19,194,450,768,753,900/157,770,874.42 - Step 6: Final answer
x = 121,660,292.75
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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.