Finding the Fourth Proportional to 299,385,102.60, 449,077,653.90 and 146,129,473.80
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Solution
The fourth proportional to 299,385,102.60, 449,077,653.90 and 146,129,473.80 is: 219,194,210.70
Step by Step Solution
- Step 1: Write the proportion equation
299,385,102.60 : 449,077,653.90 = 146,129,473.80 : x - Step 2: Convert to fraction form
299,385,102.60/449,077,653.90 = 146,129,473.80/x - Step 3: Cross multiply
299,385,102.60x = 449,077,653.90 × 146,129,473.80 - Step 4: Simplify right side
299,385,102.60x = 65,623,481,259,745,520 - Step 5: Solve for x
x = 65,623,481,259,745,520/299,385,102.60 - Step 6: Final answer
x = 219,194,210.70
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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.