Finding the Fourth Proportional to 28,081,408.20, 42,122,112.30 and 24,890,137.80
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Solution
The fourth proportional to 28,081,408.20, 42,122,112.30 and 24,890,137.80 is: 37,335,206.70
Step by Step Solution
- Step 1: Write the proportion equation
28,081,408.20 : 42,122,112.30 = 24,890,137.80 : x - Step 2: Convert to fraction form
28,081,408.20/42,122,112.30 = 24,890,137.80/x - Step 3: Cross multiply
28,081,408.20x = 42,122,112.30 × 24,890,137.80 - Step 4: Simplify right side
28,081,408.20x = 1,048,425,179,574,074.88 - Step 5: Solve for x
x = 1,048,425,179,574,074.88/28,081,408.20 - Step 6: Final answer
x = 37,335,206.70
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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.