Finding the Fourth Proportional to 21,022,472.40, 31,533,708.60 and 6,649,945.80
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Solution
The fourth proportional to 21,022,472.40, 31,533,708.60 and 6,649,945.80 is: 9,974,918.70
Step by Step Solution
- Step 1: Write the proportion equation
21,022,472.40 : 31,533,708.60 = 6,649,945.80 : x - Step 2: Convert to fraction form
21,022,472.40/31,533,708.60 = 6,649,945.80/x - Step 3: Cross multiply
21,022,472.40x = 31,533,708.60 × 6,649,945.80 - Step 4: Simplify right side
21,022,472.40x = 209,697,453,062,993.88 - Step 5: Solve for x
x = 209,697,453,062,993.88/21,022,472.40 - Step 6: Final answer
x = 9,974,918.70
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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.