Finding the Fourth Proportional to 28,529,677.28, 39,370,954.68 and 16,306,796.72
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Solution
The fourth proportional to 28,529,677.28, 39,370,954.68 and 16,306,796.72 is: 22,503,379.49
Step by Step Solution
- Step 1: Write the proportion equation
28,529,677.28 : 39,370,954.68 = 16,306,796.72 : x - Step 2: Convert to fraction form
28,529,677.28/39,370,954.68 = 16,306,796.72/x - Step 3: Cross multiply
28,529,677.28x = 39,370,954.68 × 16,306,796.72 - Step 4: Simplify right side
28,529,677.28x = 642,014,154,639,092.62 - Step 5: Solve for x
x = 642,014,154,639,092.62/28,529,677.28 - Step 6: Final answer
x = 22,503,379.49
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1.5x scale
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.