Finding the Fourth Proportional to 18,806,479.20, 28,209,718.80 and 6,036,148.80
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Solution
The fourth proportional to 18,806,479.20, 28,209,718.80 and 6,036,148.80 is: 9,054,223.20
Step by Step Solution
- Step 1: Write the proportion equation
18,806,479.20 : 28,209,718.80 = 6,036,148.80 : x - Step 2: Convert to fraction form
18,806,479.20/28,209,718.80 = 6,036,148.80/x - Step 3: Cross multiply
18,806,479.20x = 28,209,718.80 × 6,036,148.80 - Step 4: Simplify right side
18,806,479.20x = 170,278,060,282,957.44 - Step 5: Solve for x
x = 170,278,060,282,957.44/18,806,479.20 - Step 6: Final answer
x = 9,054,223.20
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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.