Finding the Fourth Proportional to 9,728,372.16, 13,425,156.47 and 5,318,116.97
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Solution
The fourth proportional to 9,728,372.16, 13,425,156.47 and 5,318,116.97 is: 7,339,002.99
Step by Step Solution
- Step 1: Write the proportion equation
9,728,372.16 : 13,425,156.47 = 5,318,116.97 : x - Step 2: Convert to fraction form
9,728,372.16/13,425,156.47 = 5,318,116.97/x - Step 3: Cross multiply
9,728,372.16x = 13,425,156.47 × 5,318,116.97 - Step 4: Simplify right side
9,728,372.16x = 71,396,552,394,181.81 - Step 5: Solve for x
x = 71,396,552,394,181.81/9,728,372.16 - Step 6: Final answer
x = 7,339,002.99
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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.