Finding the Fourth Proportional to 299,381,610.60, 449,072,415.90 and 146,125,981.80
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Solution
The fourth proportional to 299,381,610.60, 449,072,415.90 and 146,125,981.80 is: 219,188,972.70
Step by Step Solution
- Step 1: Write the proportion equation
299,381,610.60 : 449,072,415.90 = 146,125,981.80 : x - Step 2: Convert to fraction form
299,381,610.60/449,072,415.90 = 146,125,981.80/x - Step 3: Cross multiply
299,381,610.60x = 449,072,415.90 × 146,125,981.80 - Step 4: Simplify right side
299,381,610.60x = 65,621,147,672,685,432 - Step 5: Solve for x
x = 65,621,147,672,685,432/299,381,610.60 - Step 6: Final answer
x = 219,188,972.70
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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.