Finding the Fourth Proportional to 86,629,601.70, 129,944,402.55 and 69,623,489.70
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Solution
The fourth proportional to 86,629,601.70, 129,944,402.55 and 69,623,489.70 is: 104,435,234.55
Step by Step Solution
- Step 1: Write the proportion equation
86,629,601.70 : 129,944,402.55 = 69,623,489.70 : x - Step 2: Convert to fraction form
86,629,601.70/129,944,402.55 = 69,623,489.70/x - Step 3: Cross multiply
86,629,601.70x = 129,944,402.55 × 69,623,489.70 - Step 4: Simplify right side
86,629,601.70x = 9,047,182,772,512,578 - Step 5: Solve for x
x = 9,047,182,772,512,578/86,629,601.70 - Step 6: Final answer
x = 104,435,234.55
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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.