Finding the Fourth Proportional to 9,171,313.20, 13,756,969.80 and 8,289,514.80
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Solution
The fourth proportional to 9,171,313.20, 13,756,969.80 and 8,289,514.80 is: 12,434,272.20
Step by Step Solution
- Step 1: Write the proportion equation
9,171,313.20 : 13,756,969.80 = 8,289,514.80 : x - Step 2: Convert to fraction form
9,171,313.20/13,756,969.80 = 8,289,514.80/x - Step 3: Cross multiply
9,171,313.20x = 13,756,969.80 × 8,289,514.80 - Step 4: Simplify right side
9,171,313.20x = 114,038,604,760,253.05 - Step 5: Solve for x
x = 114,038,604,760,253.05/9,171,313.20 - Step 6: Final answer
x = 12,434,272.20
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1.5x scale
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.