Finding the Fourth Proportional to 18,515,534.28, 27,759,849.60 and 7,735,917.84
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Solution
The fourth proportional to 18,515,534.28, 27,759,849.60 and 7,735,917.84 is: 11,598,256.50
Step by Step Solution
- Step 1: Write the proportion equation
18,515,534.28 : 27,759,849.60 = 7,735,917.84 : x - Step 2: Convert to fraction form
18,515,534.28/27,759,849.60 = 7,735,917.84/x - Step 3: Cross multiply
18,515,534.28x = 27,759,849.60 × 7,735,917.84 - Step 4: Simplify right side
18,515,534.28x = 214,747,915,756,356.88 - Step 5: Solve for x
x = 214,747,915,756,356.88/18,515,534.28 - Step 6: Final answer
x = 11,598,256.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.