Finding the Fourth Proportional to 299,384,493.60, 449,076,740.40 and 146,128,864.80
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Solution
The fourth proportional to 299,384,493.60, 449,076,740.40 and 146,128,864.80 is: 219,193,297.20
Step by Step Solution
- Step 1: Write the proportion equation
299,384,493.60 : 449,076,740.40 = 146,128,864.80 : x - Step 2: Convert to fraction form
299,384,493.60/449,076,740.40 = 146,128,864.80/x - Step 3: Cross multiply
299,384,493.60x = 449,076,740.40 × 146,128,864.80 - Step 4: Simplify right side
299,384,493.60x = 65,623,074,282,736,296 - Step 5: Solve for x
x = 65,623,074,282,736,296/299,384,493.60 - Step 6: Final answer
x = 219,193,297.20
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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.