Finding the Fourth Proportional to 129,651,515.52, 178,923,351.96 and 70,914,178.68
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Solution
The fourth proportional to 129,651,515.52, 178,923,351.96 and 70,914,178.68 is: 97,863,896.92
Step by Step Solution
- Step 1: Write the proportion equation
129,651,515.52 : 178,923,351.96 = 70,914,178.68 : x - Step 2: Convert to fraction form
129,651,515.52/178,923,351.96 = 70,914,178.68/x - Step 3: Cross multiply
129,651,515.52x = 178,923,351.96 × 70,914,178.68 - Step 4: Simplify right side
129,651,515.52x = 12,688,202,550,915,970 - Step 5: Solve for x
x = 12,688,202,550,915,970/129,651,515.52 - Step 6: Final answer
x = 97,863,896.92
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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.