Finding the Fourth Proportional to 12,743,166.04, 19,117,516.98 and 4,656,128.70
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Solution
The fourth proportional to 12,743,166.04, 19,117,516.98 and 4,656,128.70 is: 6,985,204.39
Step by Step Solution
- Step 1: Write the proportion equation
12,743,166.04 : 19,117,516.98 = 4,656,128.70 : x - Step 2: Convert to fraction form
12,743,166.04/19,117,516.98 = 4,656,128.70/x - Step 3: Cross multiply
12,743,166.04x = 19,117,516.98 × 4,656,128.70 - Step 4: Simplify right side
12,743,166.04x = 89,013,619,384,969.81 - Step 5: Solve for x
x = 89,013,619,384,969.81/12,743,166.04 - Step 6: Final answer
x = 6,985,204.39
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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.