Finding the Fourth Proportional to 18,869,479.74, 26,031,686.04 and 11,990,271.24
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Solution
The fourth proportional to 18,869,479.74, 26,031,686.04 and 11,990,271.24 is: 16,541,366.31
Step by Step Solution
- Step 1: Write the proportion equation
18,869,479.74 : 26,031,686.04 = 11,990,271.24 : x - Step 2: Convert to fraction form
18,869,479.74/26,031,686.04 = 11,990,271.24/x - Step 3: Cross multiply
18,869,479.74x = 26,031,686.04 × 11,990,271.24 - Step 4: Simplify right side
18,869,479.74x = 312,126,976,454,121.50 - Step 5: Solve for x
x = 312,126,976,454,121.50/18,869,479.74 - Step 6: Final answer
x = 16,541,366.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.