Finding the Fourth Proportional to 80,853,217.20, 121,279,825.80 and 29,724,656.40
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Solution
The fourth proportional to 80,853,217.20, 121,279,825.80 and 29,724,656.40 is: 44,586,984.60
Step by Step Solution
- Step 1: Write the proportion equation
80,853,217.20 : 121,279,825.80 = 29,724,656.40 : x - Step 2: Convert to fraction form
80,853,217.20/121,279,825.80 = 29,724,656.40/x - Step 3: Cross multiply
80,853,217.20x = 121,279,825.80 × 29,724,656.40 - Step 4: Simplify right side
80,853,217.20x = 3,605,001,150,156,855 - Step 5: Solve for x
x = 3,605,001,150,156,855/80,853,217.20 - Step 6: Final answer
x = 44,586,984.60
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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.