Finding the Fourth Proportional to 144,639,350.54, 199,603,769.91 and 78,560,487.26
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Solution
The fourth proportional to 144,639,350.54, 199,603,769.91 and 78,560,487.26 is: 108,414,268.76
Step by Step Solution
- Step 1: Write the proportion equation
144,639,350.54 : 199,603,769.91 = 78,560,487.26 : x - Step 2: Convert to fraction form
144,639,350.54/199,603,769.91 = 78,560,487.26/x - Step 3: Cross multiply
144,639,350.54x = 199,603,769.91 × 78,560,487.26 - Step 4: Simplify right side
144,639,350.54x = 15,680,969,423,062,528 - Step 5: Solve for x
x = 15,680,969,423,062,528/144,639,350.54 - Step 6: Final answer
x = 108,414,268.76
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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.