Finding the Fourth Proportional to 18,349,630.40, 27,545,440.80 and 10,780,860.80
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Solution
The fourth proportional to 18,349,630.40, 27,545,440.80 and 10,780,860.80 is: 16,183,626.40
Step by Step Solution
- Step 1: Write the proportion equation
18,349,630.40 : 27,545,440.80 = 10,780,860.80 : x - Step 2: Convert to fraction form
18,349,630.40/27,545,440.80 = 10,780,860.80/x - Step 3: Cross multiply
18,349,630.40x = 27,545,440.80 × 10,780,860.80 - Step 4: Simplify right side
18,349,630.40x = 296,963,562,939,440.69 - Step 5: Solve for x
x = 296,963,562,939,440.69/18,349,630.40 - Step 6: Final answer
x = 16,183,626.40
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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.