Finding the Fourth Proportional to 13,487,266.40, 20,230,899.60 and 4,966,495.70
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Solution
The fourth proportional to 13,487,266.40, 20,230,899.60 and 4,966,495.70 is: 7,449,743.55
Step by Step Solution
- Step 1: Write the proportion equation
13,487,266.40 : 20,230,899.60 = 4,966,495.70 : x - Step 2: Convert to fraction form
13,487,266.40/20,230,899.60 = 4,966,495.70/x - Step 3: Cross multiply
13,487,266.40x = 20,230,899.60 × 4,966,495.70 - Step 4: Simplify right side
13,487,266.40x = 100,476,675,870,531.73 - Step 5: Solve for x
x = 100,476,675,870,531.73/13,487,266.40 - Step 6: Final answer
x = 7,449,743.55
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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.