Finding the Fourth Proportional to 18,929,081.41, 28,398,399.35 and 5,282,216.44
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Solution
The fourth proportional to 18,929,081.41, 28,398,399.35 and 5,282,216.44 is: 7,924,657.76
Step by Step Solution
- Step 1: Write the proportion equation
18,929,081.41 : 28,398,399.35 = 5,282,216.44 : x - Step 2: Convert to fraction form
18,929,081.41/28,398,399.35 = 5,282,216.44/x - Step 3: Cross multiply
18,929,081.41x = 28,398,399.35 × 5,282,216.44 - Step 4: Simplify right side
18,929,081.41x = 150,006,491,818,848.22 - Step 5: Solve for x
x = 150,006,491,818,848.22/18,929,081.41 - Step 6: Final answer
x = 7,924,657.76
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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.