Finding the Fourth Proportional to 18,453,025.80, 27,679,392.90 and 4,806,145.80
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Solution
The fourth proportional to 18,453,025.80, 27,679,392.90 and 4,806,145.80 is: 7,209,180.73
Step by Step Solution
- Step 1: Write the proportion equation
18,453,025.80 : 27,679,392.90 = 4,806,145.80 : x - Step 2: Convert to fraction form
18,453,025.80/27,679,392.90 = 4,806,145.80/x - Step 3: Cross multiply
18,453,025.80x = 27,679,392.90 × 4,806,145.80 - Step 4: Simplify right side
18,453,025.80x = 133,031,197,932,884.81 - Step 5: Solve for x
x = 133,031,197,932,884.81/18,453,025.80 - Step 6: Final answer
x = 7,209,180.73
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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.