Finding the Fourth Proportional to 13,457,982.96, 18,571,777.56 and 7,656,639.84
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Solution
The fourth proportional to 13,457,982.96, 18,571,777.56 and 7,656,639.84 is: 10,566,027.05
Step by Step Solution
- Step 1: Write the proportion equation
13,457,982.96 : 18,571,777.56 = 7,656,639.84 : x - Step 2: Convert to fraction form
13,457,982.96/18,571,777.56 = 7,656,639.84/x - Step 3: Cross multiply
13,457,982.96x = 18,571,777.56 × 7,656,639.84 - Step 4: Simplify right side
13,457,982.96x = 142,197,411,965,513.97 - Step 5: Solve for x
x = 142,197,411,965,513.97/13,457,982.96 - Step 6: Final answer
x = 10,566,027.05
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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.