Finding the Fourth Proportional to 511,468,135.20, 767,202,202.80 and 293,789,901.60
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Solution
The fourth proportional to 511,468,135.20, 767,202,202.80 and 293,789,901.60 is: 440,684,852.40
Step by Step Solution
- Step 1: Write the proportion equation
511,468,135.20 : 767,202,202.80 = 293,789,901.60 : x - Step 2: Convert to fraction form
511,468,135.20/767,202,202.80 = 293,789,901.60/x - Step 3: Cross multiply
511,468,135.20x = 767,202,202.80 × 293,789,901.60 - Step 4: Simplify right side
511,468,135.20x = 225,396,259,667,915,264 - Step 5: Solve for x
x = 225,396,259,667,915,264/511,468,135.20 - Step 6: Final answer
x = 440,684,852.40
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Similar ratio
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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.