Finding the Fourth Proportional to 13,728,000.63, 18,944,588.62 and 7,533,151.05
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Solution
The fourth proportional to 13,728,000.63, 18,944,588.62 and 7,533,151.05 is: 10,395,719.78
Step by Step Solution
- Step 1: Write the proportion equation
13,728,000.63 : 18,944,588.62 = 7,533,151.05 : x - Step 2: Convert to fraction form
13,728,000.63/18,944,588.62 = 7,533,151.05/x - Step 3: Cross multiply
13,728,000.63x = 18,944,588.62 × 7,533,151.05 - Step 4: Simplify right side
13,728,000.63x = 142,712,447,654,571.06 - Step 5: Solve for x
x = 142,712,447,654,571.06/13,728,000.63 - Step 6: Final answer
x = 10,395,719.78
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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.