Finding the Fourth Proportional to 12,073,382.70, 18,110,948.85 and 7,270,730.70
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Solution
The fourth proportional to 12,073,382.70, 18,110,948.85 and 7,270,730.70 is: 10,906,622.86
Step by Step Solution
- Step 1: Write the proportion equation
12,073,382.70 : 18,110,948.85 = 7,270,730.70 : x - Step 2: Convert to fraction form
12,073,382.70/18,110,948.85 = 7,270,730.70/x - Step 3: Cross multiply
12,073,382.70x = 18,110,948.85 × 7,270,730.70 - Step 4: Simplify right side
12,073,382.70x = 131,679,831,809,824.70 - Step 5: Solve for x
x = 131,679,831,809,824.70/12,073,382.70 - Step 6: Final answer
x = 10,906,622.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.