Finding the Fourth Proportional to 119,840,348.09, 165,379,715.79 and 67,640,441.60
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Solution
The fourth proportional to 119,840,348.09, 165,379,715.79 and 67,640,441.60 is: 93,343,829.40
Step by Step Solution
- Step 1: Write the proportion equation
119,840,348.09 : 165,379,715.79 = 67,640,441.60 : x - Step 2: Convert to fraction form
119,840,348.09/165,379,715.79 = 67,640,441.60/x - Step 3: Cross multiply
119,840,348.09x = 165,379,715.79 × 67,640,441.60 - Step 4: Simplify right side
119,840,348.09x = 11,186,357,008,131,542 - Step 5: Solve for x
x = 11,186,357,008,131,542/119,840,348.09 - Step 6: Final answer
x = 93,343,829.40
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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.