Finding the Fourth Proportional to 4,778,491.14, 7,163,947.74 and 2,503,579.23
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Solution
The fourth proportional to 4,778,491.14, 7,163,947.74 and 2,503,579.23 is: 3,753,383.70
Step by Step Solution
- Step 1: Write the proportion equation
4,778,491.14 : 7,163,947.74 = 2,503,579.23 : x - Step 2: Convert to fraction form
4,778,491.14/7,163,947.74 = 2,503,579.23/x - Step 3: Cross multiply
4,778,491.14x = 7,163,947.74 × 2,503,579.23 - Step 4: Simplify right side
4,778,491.14x = 17,935,510,766,669.44 - Step 5: Solve for x
x = 17,935,510,766,669.44/4,778,491.14 - Step 6: Final answer
x = 3,753,383.70
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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.