Finding the Fourth Proportional to 12,472,781.37, 18,593,877.84 and 12,276,230.73
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Solution
The fourth proportional to 12,472,781.37, 18,593,877.84 and 12,276,230.73 is: 18,300,868.73
Step by Step Solution
- Step 1: Write the proportion equation
12,472,781.37 : 18,593,877.84 = 12,276,230.73 : x - Step 2: Convert to fraction form
12,472,781.37/18,593,877.84 = 12,276,230.73/x - Step 3: Cross multiply
12,472,781.37x = 18,593,877.84 × 12,276,230.73 - Step 4: Simplify right side
12,472,781.37x = 228,262,734,529,274.03 - Step 5: Solve for x
x = 228,262,734,529,274.03/12,472,781.37 - Step 6: Final answer
x = 18,300,868.73
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.