Finding the Fourth Proportional to 299,344,916.80, 449,479,269.60 and 163,296,020.80
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Solution
The fourth proportional to 299,344,916.80, 449,479,269.60 and 163,296,020.80 is: 245,195,999.79
Step by Step Solution
- Step 1: Write the proportion equation
299,344,916.80 : 449,479,269.60 = 163,296,020.80 : x - Step 2: Convert to fraction form
299,344,916.80/449,479,269.60 = 163,296,020.80/x - Step 3: Cross multiply
299,344,916.80x = 449,479,269.60 × 163,296,020.80 - Step 4: Simplify right side
299,344,916.80x = 73,398,176,157,770,416 - Step 5: Solve for x
x = 73,398,176,157,770,416/299,344,916.80 - Step 6: Final answer
x = 245,195,999.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.