Finding the Fourth Proportional to 38,308,229.48, 52,866,473.19 and 20,905,695.68
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Solution
The fourth proportional to 38,308,229.48, 52,866,473.19 and 20,905,695.68 is: 28,850,469.34
Step by Step Solution
- Step 1: Write the proportion equation
38,308,229.48 : 52,866,473.19 = 20,905,695.68 : x - Step 2: Convert to fraction form
38,308,229.48/52,866,473.19 = 20,905,695.68/x - Step 3: Cross multiply
38,308,229.48x = 52,866,473.19 × 20,905,695.68 - Step 4: Simplify right side
38,308,229.48x = 1,105,210,400,080,490.38 - Step 5: Solve for x
x = 1,105,210,400,080,490.38/38,308,229.48 - Step 6: Final answer
x = 28,850,469.34
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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.