Finding the Fourth Proportional to 28,743,472.12, 39,660,684.51 and 16,352,842.18
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Solution
The fourth proportional to 28,743,472.12, 39,660,684.51 and 16,352,842.18 is: 22,563,902.92
Step by Step Solution
- Step 1: Write the proportion equation
28,743,472.12 : 39,660,684.51 = 16,352,842.18 : x - Step 2: Convert to fraction form
28,743,472.12/39,660,684.51 = 16,352,842.18/x - Step 3: Cross multiply
28,743,472.12x = 39,660,684.51 × 16,352,842.18 - Step 4: Simplify right side
28,743,472.12x = 648,564,914,542,800.62 - Step 5: Solve for x
x = 648,564,914,542,800.62/28,743,472.12 - Step 6: Final answer
x = 22,563,902.92
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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.