Finding the Fourth Proportional to 28,977,432.57, 39,990,389.36 and 16,420,924.44
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Solution
The fourth proportional to 28,977,432.57, 39,990,389.36 and 16,420,924.44 is: 22,661,744.11
Step by Step Solution
- Step 1: Write the proportion equation
28,977,432.57 : 39,990,389.36 = 16,420,924.44 : x - Step 2: Convert to fraction form
28,977,432.57/39,990,389.36 = 16,420,924.44/x - Step 3: Cross multiply
28,977,432.57x = 39,990,389.36 × 16,420,924.44 - Step 4: Simplify right side
28,977,432.57x = 656,679,161,924,635.25 - Step 5: Solve for x
x = 656,679,161,924,635.25/28,977,432.57 - Step 6: Final answer
x = 22,661,744.11
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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.