Finding the Fourth Proportional to 28,638,099.24, 39,520,679.30 and 15,585,514.62
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Solution
The fourth proportional to 28,638,099.24, 39,520,679.30 and 15,585,514.62 is: 21,508,065.88
Step by Step Solution
- Step 1: Write the proportion equation
28,638,099.24 : 39,520,679.30 = 15,585,514.62 : x - Step 2: Convert to fraction form
28,638,099.24/39,520,679.30 = 15,585,514.62/x - Step 3: Cross multiply
28,638,099.24x = 39,520,679.30 × 15,585,514.62 - Step 4: Simplify right side
28,638,099.24x = 615,950,125,022,481.25 - Step 5: Solve for x
x = 615,950,125,022,481.25/28,638,099.24 - Step 6: Final answer
x = 21,508,065.88
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1.5x scale
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.