Finding the Fourth Proportional to 19,203,811.09, 26,503,680.17 and 12,593,958.30
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Solution
The fourth proportional to 19,203,811.09, 26,503,680.17 and 12,593,958.30 is: 17,381,250.07
Step by Step Solution
- Step 1: Write the proportion equation
19,203,811.09 : 26,503,680.17 = 12,593,958.30 : x - Step 2: Convert to fraction form
19,203,811.09/26,503,680.17 = 12,593,958.30/x - Step 3: Cross multiply
19,203,811.09x = 26,503,680.17 × 12,593,958.30 - Step 4: Simplify right side
19,203,811.09x = 333,786,242,889,001.81 - Step 5: Solve for x
x = 333,786,242,889,001.81/19,203,811.09 - Step 6: Final answer
x = 17,381,250.07
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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.