Finding the Fourth Proportional to 299,336,752.80, 449,173,090.80 and 126,784,202.40
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Solution
The fourth proportional to 299,336,752.80, 449,173,090.80 and 126,784,202.40 is: 190,247,443.80
Step by Step Solution
- Step 1: Write the proportion equation
299,336,752.80 : 449,173,090.80 = 126,784,202.40 : x - Step 2: Convert to fraction form
299,336,752.80/449,173,090.80 = 126,784,202.40/x - Step 3: Cross multiply
299,336,752.80x = 449,173,090.80 × 126,784,202.40 - Step 4: Simplify right side
299,336,752.80x = 56,948,052,056,620,784 - Step 5: Solve for x
x = 56,948,052,056,620,784/299,336,752.80 - Step 6: Final answer
x = 190,247,443.80
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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.