Finding the Fourth Proportional to 80,853,218.70, 121,279,828.05 and 29,724,657.90
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Solution
The fourth proportional to 80,853,218.70, 121,279,828.05 and 29,724,657.90 is: 44,586,986.85
Step by Step Solution
- Step 1: Write the proportion equation
80,853,218.70 : 121,279,828.05 = 29,724,657.90 : x - Step 2: Convert to fraction form
80,853,218.70/121,279,828.05 = 29,724,657.90/x - Step 3: Cross multiply
80,853,218.70x = 121,279,828.05 × 29,724,657.90 - Step 4: Simplify right side
80,853,218.70x = 3,605,001,398,957,074 - Step 5: Solve for x
x = 3,605,001,398,957,074/80,853,218.70 - Step 6: Final answer
x = 44,586,986.85
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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.