Finding the Fourth Proportional to 19,621,446.30, 29,432,169.45 and 18,792,135.90
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Solution
The fourth proportional to 19,621,446.30, 29,432,169.45 and 18,792,135.90 is: 28,188,203.85
Step by Step Solution
- Step 1: Write the proportion equation
19,621,446.30 : 29,432,169.45 = 18,792,135.90 : x - Step 2: Convert to fraction form
19,621,446.30/29,432,169.45 = 18,792,135.90/x - Step 3: Cross multiply
19,621,446.30x = 29,432,169.45 × 18,792,135.90 - Step 4: Simplify right side
19,621,446.30x = 553,093,328,136,228.19 - Step 5: Solve for x
x = 553,093,328,136,228.19/19,621,446.30 - Step 6: Final answer
x = 28,188,203.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.