Finding the Fourth Proportional to 12,790,526.13, 17,651,932.29 and 7,284,133.98
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Solution
The fourth proportional to 12,790,526.13, 17,651,932.29 and 7,284,133.98 is: 10,052,677.94
Step by Step Solution
- Step 1: Write the proportion equation
12,790,526.13 : 17,651,932.29 = 7,284,133.98 : x - Step 2: Convert to fraction form
12,790,526.13/17,651,932.29 = 7,284,133.98/x - Step 3: Cross multiply
12,790,526.13x = 17,651,932.29 × 7,284,133.98 - Step 4: Simplify right side
12,790,526.13x = 128,579,039,806,248.22 - Step 5: Solve for x
x = 128,579,039,806,248.22/12,790,526.13 - Step 6: Final answer
x = 10,052,677.94
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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.