Finding the Fourth Proportional to 15,359,368.68, 21,195,524.07 and 8,483,703.12
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Solution
The fourth proportional to 15,359,368.68, 21,195,524.07 and 8,483,703.12 is: 11,707,286.77
Step by Step Solution
- Step 1: Write the proportion equation
15,359,368.68 : 21,195,524.07 = 8,483,703.12 : x - Step 2: Convert to fraction form
15,359,368.68/21,195,524.07 = 8,483,703.12/x - Step 3: Cross multiply
15,359,368.68x = 21,195,524.07 × 8,483,703.12 - Step 4: Simplify right side
15,359,368.68x = 179,816,533,682,694.09 - Step 5: Solve for x
x = 179,816,533,682,694.09/15,359,368.68 - Step 6: Final answer
x = 11,707,286.77
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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.