Finding the Fourth Proportional to 27,703,076.87, 38,230,254.34 and 15,144,186.09
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Solution
The fourth proportional to 27,703,076.87, 38,230,254.34 and 15,144,186.09 is: 20,898,981.31
Step by Step Solution
- Step 1: Write the proportion equation
27,703,076.87 : 38,230,254.34 = 15,144,186.09 : x - Step 2: Convert to fraction form
27,703,076.87/38,230,254.34 = 15,144,186.09/x - Step 3: Cross multiply
27,703,076.87x = 38,230,254.34 × 15,144,186.09 - Step 4: Simplify right side
27,703,076.87x = 578,966,085,754,651.75 - Step 5: Solve for x
x = 578,966,085,754,651.75/27,703,076.87 - Step 6: Final answer
x = 20,898,981.31
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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.