Finding the Fourth Proportional to 28,563,375.80, 39,402,883.50 and 18,239,243.96
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Solution
The fourth proportional to 28,563,375.80, 39,402,883.50 and 18,239,243.96 is: 25,160,849.68
Step by Step Solution
- Step 1: Write the proportion equation
28,563,375.80 : 39,402,883.50 = 18,239,243.96 : x - Step 2: Convert to fraction form
28,563,375.80/39,402,883.50 = 18,239,243.96/x - Step 3: Cross multiply
28,563,375.80x = 39,402,883.50 × 18,239,243.96 - Step 4: Simplify right side
28,563,375.80x = 718,678,804,883,958.75 - Step 5: Solve for x
x = 718,678,804,883,958.75/28,563,375.80 - Step 6: Final answer
x = 25,160,849.68
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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.