Finding the Fourth Proportional to 21,726,632.16, 29,982,270.28 and 11,803,258.48
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Solution
The fourth proportional to 21,726,632.16, 29,982,270.28 and 11,803,258.48 is: 16,288,234.80
Step by Step Solution
- Step 1: Write the proportion equation
21,726,632.16 : 29,982,270.28 = 11,803,258.48 : x - Step 2: Convert to fraction form
21,726,632.16/29,982,270.28 = 11,803,258.48/x - Step 3: Cross multiply
21,726,632.16x = 29,982,270.28 × 11,803,258.48 - Step 4: Simplify right side
21,726,632.16x = 353,888,485,932,062 - Step 5: Solve for x
x = 353,888,485,932,062/21,726,632.16 - Step 6: Final answer
x = 16,288,234.80
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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.