Finding the Fourth Proportional to 20,754,684.80, 31,048,046.40 and 18,235,260.80
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Solution
The fourth proportional to 20,754,684.80, 31,048,046.40 and 18,235,260.80 is: 27,279,104.88
Step by Step Solution
- Step 1: Write the proportion equation
20,754,684.80 : 31,048,046.40 = 18,235,260.80 : x - Step 2: Convert to fraction form
20,754,684.80/31,048,046.40 = 18,235,260.80/x - Step 3: Cross multiply
20,754,684.80x = 31,048,046.40 × 18,235,260.80 - Step 4: Simplify right side
20,754,684.80x = 566,169,223,434,501.12 - Step 5: Solve for x
x = 566,169,223,434,501.12/20,754,684.80 - Step 6: Final answer
x = 27,279,104.88
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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.