Finding the Fourth Proportional to 15,268,806.56, 21,070,975.56 and 8,393,330.54
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Solution
The fourth proportional to 15,268,806.56, 21,070,975.56 and 8,393,330.54 is: 11,582,808.52
Step by Step Solution
- Step 1: Write the proportion equation
15,268,806.56 : 21,070,975.56 = 8,393,330.54 : x - Step 2: Convert to fraction form
15,268,806.56/21,070,975.56 = 8,393,330.54/x - Step 3: Cross multiply
15,268,806.56x = 21,070,975.56 × 8,393,330.54 - Step 4: Simplify right side
15,268,806.56x = 176,855,662,675,341.56 - Step 5: Solve for x
x = 176,855,662,675,341.56/15,268,806.56 - Step 6: Final answer
x = 11,582,808.52
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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.