Finding the Fourth Proportional to 19,378,313.40, 29,060,471.70 and 9,790,505.40
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Solution
The fourth proportional to 19,378,313.40, 29,060,471.70 and 9,790,505.40 is: 14,682,222.30
Step by Step Solution
- Step 1: Write the proportion equation
19,378,313.40 : 29,060,471.70 = 9,790,505.40 : x - Step 2: Convert to fraction form
19,378,313.40/29,060,471.70 = 9,790,505.40/x - Step 3: Cross multiply
19,378,313.40x = 29,060,471.70 × 9,790,505.40 - Step 4: Simplify right side
19,378,313.40x = 284,516,705,105,397.19 - Step 5: Solve for x
x = 284,516,705,105,397.19/19,378,313.40 - Step 6: Final answer
x = 14,682,222.30
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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.