Finding the Fourth Proportional to 12,239,571.40, 18,361,106.70 and 4,152,920.20
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Solution
The fourth proportional to 12,239,571.40, 18,361,106.70 and 4,152,920.20 is: 6,229,973.94
Step by Step Solution
- Step 1: Write the proportion equation
12,239,571.40 : 18,361,106.70 = 4,152,920.20 : x - Step 2: Convert to fraction form
12,239,571.40/18,361,106.70 = 4,152,920.20/x - Step 3: Cross multiply
12,239,571.40x = 18,361,106.70 × 4,152,920.20 - Step 4: Simplify right side
12,239,571.40x = 76,252,210,908,785.34 - Step 5: Solve for x
x = 76,252,210,908,785.34/12,239,571.40 - Step 6: Final answer
x = 6,229,973.94
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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.