Finding the Fourth Proportional to 14,479,475.80, 21,718,881.60 and 7,289,078.80
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Solution
The fourth proportional to 14,479,475.80, 21,718,881.60 and 7,289,078.80 is: 10,933,451.02
Step by Step Solution
- Step 1: Write the proportion equation
14,479,475.80 : 21,718,881.60 = 7,289,078.80 : x - Step 2: Convert to fraction form
14,479,475.80/21,718,881.60 = 7,289,078.80/x - Step 3: Cross multiply
14,479,475.80x = 21,718,881.60 × 7,289,078.80 - Step 4: Simplify right side
14,479,475.80x = 158,310,639,430,270.09 - Step 5: Solve for x
x = 158,310,639,430,270.09/14,479,475.80 - Step 6: Final answer
x = 10,933,451.02
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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.