Finding the Fourth Proportional to 411,036,808.20, 616,555,212.30 and 104,328,921.08
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Solution
The fourth proportional to 411,036,808.20, 616,555,212.30 and 104,328,921.08 is: 156,493,381.61
Step by Step Solution
- Step 1: Write the proportion equation
411,036,808.20 : 616,555,212.30 = 104,328,921.08 : x - Step 2: Convert to fraction form
411,036,808.20/616,555,212.30 = 104,328,921.08/x - Step 3: Cross multiply
411,036,808.20x = 616,555,212.30 × 104,328,921.08 - Step 4: Simplify right side
411,036,808.20x = 64,324,540,082,426,568 - Step 5: Solve for x
x = 64,324,540,082,426,568/411,036,808.20 - Step 6: Final answer
x = 156,493,381.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.