Finding the Fourth Proportional to 19,171,887.40, 28,757,831.10 and 14,888,866.60
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Solution
The fourth proportional to 19,171,887.40, 28,757,831.10 and 14,888,866.60 is: 22,333,299.90
Step by Step Solution
- Step 1: Write the proportion equation
19,171,887.40 : 28,757,831.10 = 14,888,866.60 : x - Step 2: Convert to fraction form
19,171,887.40/28,757,831.10 = 14,888,866.60/x - Step 3: Cross multiply
19,171,887.40x = 28,757,831.10 × 14,888,866.60 - Step 4: Simplify right side
19,171,887.40x = 428,171,510,953,231.25 - Step 5: Solve for x
x = 428,171,510,953,231.25/19,171,887.40 - Step 6: Final answer
x = 22,333,299.90
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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.