Finding the Fourth Proportional to 12,190,545.62, 18,283,020.21 and 7,267,970.17
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Solution
The fourth proportional to 12,190,545.62, 18,283,020.21 and 7,267,970.17 is: 10,900,286.96
Step by Step Solution
- Step 1: Write the proportion equation
12,190,545.62 : 18,283,020.21 = 7,267,970.17 : x - Step 2: Convert to fraction form
12,190,545.62/18,283,020.21 = 7,267,970.17/x - Step 3: Cross multiply
12,190,545.62x = 18,283,020.21 × 7,267,970.17 - Step 4: Simplify right side
12,190,545.62x = 132,880,445,458,079.59 - Step 5: Solve for x
x = 132,880,445,458,079.59/12,190,545.62 - Step 6: Final answer
x = 10,900,286.96
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1.5x scale
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.