Finding the Fourth Proportional to 14,318,529.12, 19,760,220.87 and 8,438,411.48
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Solution
The fourth proportional to 14,318,529.12, 19,760,220.87 and 8,438,411.48 is: 11,645,391.31
Step by Step Solution
- Step 1: Write the proportion equation
14,318,529.12 : 19,760,220.87 = 8,438,411.48 : x - Step 2: Convert to fraction form
14,318,529.12/19,760,220.87 = 8,438,411.48/x - Step 3: Cross multiply
14,318,529.12x = 19,760,220.87 × 8,438,411.48 - Step 4: Simplify right side
14,318,529.12x = 166,744,874,636,743.59 - Step 5: Solve for x
x = 166,744,874,636,743.59/14,318,529.12 - Step 6: Final answer
x = 11,645,391.31
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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.