Finding the Fourth Proportional to 19,689,524.96, 27,171,549.35 and 10,868,981.36
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Solution
The fourth proportional to 19,689,524.96, 27,171,549.35 and 10,868,981.36 is: 14,999,196.98
Step by Step Solution
- Step 1: Write the proportion equation
19,689,524.96 : 27,171,549.35 = 10,868,981.36 : x - Step 2: Convert to fraction form
19,689,524.96/27,171,549.35 = 10,868,981.36/x - Step 3: Cross multiply
19,689,524.96x = 27,171,549.35 × 10,868,981.36 - Step 4: Simplify right side
19,689,524.96x = 295,327,063,407,470.12 - Step 5: Solve for x
x = 295,327,063,407,470.12/19,689,524.96 - Step 6: Final answer
x = 14,999,196.98
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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.