Finding the Fourth Proportional to 20,738,071.60, 31,052,675.40 and 14,639,873.20
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Solution
The fourth proportional to 20,738,071.60, 31,052,675.40 and 14,639,873.20 is: 21,921,383.97
Step by Step Solution
- Step 1: Write the proportion equation
20,738,071.60 : 31,052,675.40 = 14,639,873.20 : x - Step 2: Convert to fraction form
20,738,071.60/31,052,675.40 = 14,639,873.20/x - Step 3: Cross multiply
20,738,071.60x = 31,052,675.40 × 14,639,873.20 - Step 4: Simplify right side
20,738,071.60x = 454,607,230,376,759.25 - Step 5: Solve for x
x = 454,607,230,376,759.25/20,738,071.60 - Step 6: Final answer
x = 21,921,383.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.