Finding the Fourth Proportional to 28,455,932.13, 39,274,506.21 and 16,232,789.13
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Solution
The fourth proportional to 28,455,932.13, 39,274,506.21 and 16,232,789.13 is: 22,404,283.74
Step by Step Solution
- Step 1: Write the proportion equation
28,455,932.13 : 39,274,506.21 = 16,232,789.13 : x - Step 2: Convert to fraction form
28,455,932.13/39,274,506.21 = 16,232,789.13/x - Step 3: Cross multiply
28,455,932.13x = 39,274,506.21 × 16,232,789.13 - Step 4: Simplify right side
28,455,932.13x = 637,534,777,491,805.50 - Step 5: Solve for x
x = 637,534,777,491,805.50/28,455,932.13 - Step 6: Final answer
x = 22,404,283.74
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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.