Finding the Fourth Proportional to 19,391,453.28, 26,760,288.24 and 10,689,436.80
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Solution
The fourth proportional to 19,391,453.28, 26,760,288.24 and 10,689,436.80 is: 14,751,468.38
Step by Step Solution
- Step 1: Write the proportion equation
19,391,453.28 : 26,760,288.24 = 10,689,436.80 : x - Step 2: Convert to fraction form
19,391,453.28/26,760,288.24 = 10,689,436.80/x - Step 3: Cross multiply
19,391,453.28x = 26,760,288.24 × 10,689,436.80 - Step 4: Simplify right side
19,391,453.28x = 286,052,409,891,263.25 - Step 5: Solve for x
x = 286,052,409,891,263.25/19,391,453.28 - Step 6: Final answer
x = 14,751,468.38
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1.5x scale
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.