Finding the Fourth Proportional to 19,998,635.84, 27,598,031.60 and 11,178,074.72
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Solution
The fourth proportional to 19,998,635.84, 27,598,031.60 and 11,178,074.72 is: 15,425,695.12
Step by Step Solution
- Step 1: Write the proportion equation
19,998,635.84 : 27,598,031.60 = 11,178,074.72 : x - Step 2: Convert to fraction form
19,998,635.84/27,598,031.60 = 11,178,074.72/x - Step 3: Cross multiply
19,998,635.84x = 27,598,031.60 × 11,178,074.72 - Step 4: Simplify right side
19,998,635.84x = 308,492,859,349,721.19 - Step 5: Solve for x
x = 308,492,859,349,721.19/19,998,635.84 - Step 6: Final answer
x = 15,425,695.12
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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.