Finding the Fourth Proportional to 15,582,502.84, 21,503,478.56 and 8,517,782.08
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Solution
The fourth proportional to 15,582,502.84, 21,503,478.56 and 8,517,782.08 is: 11,754,334.09
Step by Step Solution
- Step 1: Write the proportion equation
15,582,502.84 : 21,503,478.56 = 8,517,782.08 : x - Step 2: Convert to fraction form
15,582,502.84/21,503,478.56 = 8,517,782.08/x - Step 3: Cross multiply
15,582,502.84x = 21,503,478.56 × 8,517,782.08 - Step 4: Simplify right side
15,582,502.84x = 183,161,944,336,032.19 - Step 5: Solve for x
x = 183,161,944,336,032.19/15,582,502.84 - Step 6: Final answer
x = 11,754,334.09
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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.