Finding the Fourth Proportional to 20,171,470.40, 27,834,482.70 and 11,350,767.62
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Solution
The fourth proportional to 20,171,470.40, 27,834,482.70 and 11,350,767.62 is: 15,662,851.48
Step by Step Solution
- Step 1: Write the proportion equation
20,171,470.40 : 27,834,482.70 = 11,350,767.62 : x - Step 2: Convert to fraction form
20,171,470.40/27,834,482.70 = 11,350,767.62/x - Step 3: Cross multiply
20,171,470.40x = 27,834,482.70 × 11,350,767.62 - Step 4: Simplify right side
20,171,470.40x = 315,942,744,950,610.12 - Step 5: Solve for x
x = 315,942,744,950,610.12/20,171,470.40 - Step 6: Final answer
x = 15,662,851.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.