Finding the Fourth Proportional to 13,236,981.92, 18,265,045.84 and 7,434,652.48
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Solution
The fourth proportional to 13,236,981.92, 18,265,045.84 and 7,434,652.48 is: 10,258,703.17
Step by Step Solution
- Step 1: Write the proportion equation
13,236,981.92 : 18,265,045.84 = 7,434,652.48 : x - Step 2: Convert to fraction form
13,236,981.92/18,265,045.84 = 7,434,652.48/x - Step 3: Cross multiply
13,236,981.92x = 18,265,045.84 × 7,434,652.48 - Step 4: Simplify right side
13,236,981.92x = 135,794,268,351,669.69 - Step 5: Solve for x
x = 135,794,268,351,669.69/13,236,981.92 - Step 6: Final answer
x = 10,258,703.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.