Finding the Fourth Proportional to 411,527,121.72, 619,754,161.68 and 374,793,919.80
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Solution
The fourth proportional to 411,527,121.72, 619,754,161.68 and 374,793,919.80 is: 564,434,466.91
Step by Step Solution
- Step 1: Write the proportion equation
411,527,121.72 : 619,754,161.68 = 374,793,919.80 : x - Step 2: Convert to fraction form
411,527,121.72/619,754,161.68 = 374,793,919.80/x - Step 3: Cross multiply
411,527,121.72x = 619,754,161.68 × 374,793,919.80 - Step 4: Simplify right side
411,527,121.72x = 232,280,091,568,410,144 - Step 5: Solve for x
x = 232,280,091,568,410,144/411,527,121.72 - Step 6: Final answer
x = 564,434,466.91
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.