Finding the Fourth Proportional to 851,471,998.80, 1,277,207,998.20 and 238,055,240.40
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Solution
The fourth proportional to 851,471,998.80, 1,277,207,998.20 and 238,055,240.40 is: 357,082,860.60
Step by Step Solution
- Step 1: Write the proportion equation
851,471,998.80 : 1,277,207,998.20 = 238,055,240.40 : x - Step 2: Convert to fraction form
851,471,998.80/1,277,207,998.20 = 238,055,240.40/x - Step 3: Cross multiply
851,471,998.80x = 1,277,207,998.20 × 238,055,240.40 - Step 4: Simplify right side
851,471,998.80x = 304,046,057,052,303,808 - Step 5: Solve for x
x = 304,046,057,052,303,808/851,471,998.80 - Step 6: Final answer
x = 357,082,860.60
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1.5x scale
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.