Finding the Fourth Proportional to 14,638,670.64, 20,201,118.56 and 8,112,286.80
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Solution
The fourth proportional to 14,638,670.64, 20,201,118.56 and 8,112,286.80 is: 11,194,818.95
Step by Step Solution
- Step 1: Write the proportion equation
14,638,670.64 : 20,201,118.56 = 8,112,286.80 : x - Step 2: Convert to fraction form
14,638,670.64/20,201,118.56 = 8,112,286.80/x - Step 3: Cross multiply
14,638,670.64x = 20,201,118.56 × 8,112,286.80 - Step 4: Simplify right side
14,638,670.64x = 163,877,267,439,523 - Step 5: Solve for x
x = 163,877,267,439,523/14,638,670.64 - Step 6: Final answer
x = 11,194,818.95
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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.