Finding the Fourth Proportional to 11,215,618.02, 16,823,561.90 and 3,128,101.13
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Solution
The fourth proportional to 11,215,618.02, 16,823,561.90 and 3,128,101.13 is: 4,692,189.31
Step by Step Solution
- Step 1: Write the proportion equation
11,215,618.02 : 16,823,561.90 = 3,128,101.13 : x - Step 2: Convert to fraction form
11,215,618.02/16,823,561.90 = 3,128,101.13/x - Step 3: Cross multiply
11,215,618.02x = 16,823,561.90 × 3,128,101.13 - Step 4: Simplify right side
11,215,618.02x = 52,625,803,016,433.34 - Step 5: Solve for x
x = 52,625,803,016,433.34/11,215,618.02 - Step 6: Final answer
x = 4,692,189.31
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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.