Finding the Fourth Proportional to 19,875,838.68, 27,428,492.34 and 11,174,049.96
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Solution
The fourth proportional to 19,875,838.68, 27,428,492.34 and 11,174,049.96 is: 15,420,096.16
Step by Step Solution
- Step 1: Write the proportion equation
19,875,838.68 : 27,428,492.34 = 11,174,049.96 : x - Step 2: Convert to fraction form
19,875,838.68/27,428,492.34 = 11,174,049.96/x - Step 3: Cross multiply
19,875,838.68x = 27,428,492.34 × 11,174,049.96 - Step 4: Simplify right side
19,875,838.68x = 306,487,343,734,637.31 - Step 5: Solve for x
x = 306,487,343,734,637.31/19,875,838.68 - Step 6: Final answer
x = 15,420,096.16
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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.