Finding the Fourth Proportional to 13,306,938.20, 19,960,407.30 and 4,787,552.60
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Solution
The fourth proportional to 13,306,938.20, 19,960,407.30 and 4,787,552.60 is: 7,181,328.90
Step by Step Solution
- Step 1: Write the proportion equation
13,306,938.20 : 19,960,407.30 = 4,787,552.60 : x - Step 2: Convert to fraction form
13,306,938.20/19,960,407.30 = 4,787,552.60/x - Step 3: Cross multiply
13,306,938.20x = 19,960,407.30 × 4,787,552.60 - Step 4: Simplify right side
13,306,938.20x = 95,561,499,866,173.97 - Step 5: Solve for x
x = 95,561,499,866,173.97/13,306,938.20 - Step 6: Final answer
x = 7,181,328.90
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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.