Finding the Fourth Proportional to 26,161,826.40, 39,226,993.20 and 13,407,242.40
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Solution
The fourth proportional to 26,161,826.40, 39,226,993.20 and 13,407,242.40 is: 20,102,793.99
Step by Step Solution
- Step 1: Write the proportion equation
26,161,826.40 : 39,226,993.20 = 13,407,242.40 : x - Step 2: Convert to fraction form
26,161,826.40/39,226,993.20 = 13,407,242.40/x - Step 3: Cross multiply
26,161,826.40x = 39,226,993.20 × 13,407,242.40 - Step 4: Simplify right side
26,161,826.40x = 525,925,806,455,551.75 - Step 5: Solve for x
x = 525,925,806,455,551.75/26,161,826.40 - Step 6: Final answer
x = 20,102,793.99
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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.