Finding the Fourth Proportional to 7,029,353.16, 9,702,569.64 and 4,089,861.84
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Solution
The fourth proportional to 7,029,353.16, 9,702,569.64 and 4,089,861.84 is: 5,645,209.23
Step by Step Solution
- Step 1: Write the proportion equation
7,029,353.16 : 9,702,569.64 = 4,089,861.84 : x - Step 2: Convert to fraction form
7,029,353.16/9,702,569.64 = 4,089,861.84/x - Step 3: Cross multiply
7,029,353.16x = 9,702,569.64 × 4,089,861.84 - Step 4: Simplify right side
7,029,353.16x = 39,682,169,320,578.54 - Step 5: Solve for x
x = 39,682,169,320,578.54/7,029,353.16 - Step 6: Final answer
x = 5,645,209.23
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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.