Finding the Fourth Proportional to 74,470,168.53, 102,769,778.30 and 40,983,503.09
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Solution
The fourth proportional to 74,470,168.53, 102,769,778.30 and 40,983,503.09 is: 56,557,754.72
Step by Step Solution
- Step 1: Write the proportion equation
74,470,168.53 : 102,769,778.30 = 40,983,503.09 : x - Step 2: Convert to fraction form
74,470,168.53/102,769,778.30 = 40,983,503.09/x - Step 3: Cross multiply
74,470,168.53x = 102,769,778.30 × 40,983,503.09 - Step 4: Simplify right side
74,470,168.53x = 4,211,865,525,797,898.50 - Step 5: Solve for x
x = 4,211,865,525,797,898.50/74,470,168.53 - Step 6: Final answer
x = 56,557,754.72
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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.