Finding the Fourth Proportional to 26,288,471.68, 39,397,459.85 and 20,459,695.75
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Solution
The fourth proportional to 26,288,471.68, 39,397,459.85 and 20,459,695.75 is: 30,662,111.19
Step by Step Solution
- Step 1: Write the proportion equation
26,288,471.68 : 39,397,459.85 = 20,459,695.75 : x - Step 2: Convert to fraction form
26,288,471.68/39,397,459.85 = 20,459,695.75/x - Step 3: Cross multiply
26,288,471.68x = 39,397,459.85 × 20,459,695.75 - Step 4: Simplify right side
26,288,471.68x = 806,060,041,655,902.25 - Step 5: Solve for x
x = 806,060,041,655,902.25/26,288,471.68 - Step 6: Final answer
x = 30,662,111.19
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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.