Finding the Fourth Proportional to 299,385,764.10, 449,078,646.15 and 146,130,135.30
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Solution
The fourth proportional to 299,385,764.10, 449,078,646.15 and 146,130,135.30 is: 219,195,202.95
Step by Step Solution
- Step 1: Write the proportion equation
299,385,764.10 : 449,078,646.15 = 146,130,135.30 : x - Step 2: Convert to fraction form
299,385,764.10/449,078,646.15 = 146,130,135.30/x - Step 3: Cross multiply
299,385,764.10x = 449,078,646.15 × 146,130,135.30 - Step 4: Simplify right side
299,385,764.10x = 65,623,923,322,240,328 - Step 5: Solve for x
x = 65,623,923,322,240,328/299,385,764.10 - Step 6: Final answer
x = 219,195,202.95
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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.