Finding the Fourth Proportional to 49,392,415.80, 74,088,623.70 and 48,447,631.80
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Solution
The fourth proportional to 49,392,415.80, 74,088,623.70 and 48,447,631.80 is: 72,671,447.70
Step by Step Solution
- Step 1: Write the proportion equation
49,392,415.80 : 74,088,623.70 = 48,447,631.80 : x - Step 2: Convert to fraction form
49,392,415.80/74,088,623.70 = 48,447,631.80/x - Step 3: Cross multiply
49,392,415.80x = 74,088,623.70 × 48,447,631.80 - Step 4: Simplify right side
49,392,415.80x = 3,589,418,361,586,353.50 - Step 5: Solve for x
x = 3,589,418,361,586,353.50/49,392,415.80 - Step 6: Final answer
x = 72,671,447.70
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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.