Finding the Fourth Proportional to 27,747,147.84, 38,293,330.08 and 15,990,073.92
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Solution
The fourth proportional to 27,747,147.84, 38,293,330.08 and 15,990,073.92 is: 22,067,607.89
Step by Step Solution
- Step 1: Write the proportion equation
27,747,147.84 : 38,293,330.08 = 15,990,073.92 : x - Step 2: Convert to fraction form
27,747,147.84/38,293,330.08 = 15,990,073.92/x - Step 3: Cross multiply
27,747,147.84x = 38,293,330.08 × 15,990,073.92 - Step 4: Simplify right side
27,747,147.84x = 612,313,178,622,159.50 - Step 5: Solve for x
x = 612,313,178,622,159.50/27,747,147.84 - Step 6: Final answer
x = 22,067,607.89
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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.