Finding the Fourth Proportional to 13,641,537.24, 18,825,318.54 and 7,529,964.12
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Solution
The fourth proportional to 13,641,537.24, 18,825,318.54 and 7,529,964.12 is: 10,391,348.91
Step by Step Solution
- Step 1: Write the proportion equation
13,641,537.24 : 18,825,318.54 = 7,529,964.12 : x - Step 2: Convert to fraction form
13,641,537.24/18,825,318.54 = 7,529,964.12/x - Step 3: Cross multiply
13,641,537.24x = 18,825,318.54 × 7,529,964.12 - Step 4: Simplify right side
13,641,537.24x = 141,753,973,153,770.78 - Step 5: Solve for x
x = 141,753,973,153,770.78/13,641,537.24 - Step 6: Final answer
x = 10,391,348.91
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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.