Finding the Fourth Proportional to 21,433,715.10, 29,581,062.57 and 12,731,922.09
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Solution
The fourth proportional to 21,433,715.10, 29,581,062.57 and 12,731,922.09 is: 17,571,558.74
Step by Step Solution
- Step 1: Write the proportion equation
21,433,715.10 : 29,581,062.57 = 12,731,922.09 : x - Step 2: Convert to fraction form
21,433,715.10/29,581,062.57 = 12,731,922.09/x - Step 3: Cross multiply
21,433,715.10x = 29,581,062.57 × 12,731,922.09 - Step 4: Simplify right side
21,433,715.10x = 376,623,783,980,655.19 - Step 5: Solve for x
x = 376,623,783,980,655.19/21,433,715.10 - Step 6: Final answer
x = 17,571,558.74
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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.