Finding the Fourth Proportional to 299,610,385.20, 449,415,577.80 and 84,199,633.20
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Solution
The fourth proportional to 299,610,385.20, 449,415,577.80 and 84,199,633.20 is: 126,299,449.80
Step by Step Solution
- Step 1: Write the proportion equation
299,610,385.20 : 449,415,577.80 = 84,199,633.20 : x - Step 2: Convert to fraction form
299,610,385.20/449,415,577.80 = 84,199,633.20/x - Step 3: Cross multiply
299,610,385.20x = 449,415,577.80 × 84,199,633.20 - Step 4: Simplify right side
299,610,385.20x = 37,840,626,805,126,064 - Step 5: Solve for x
x = 37,840,626,805,126,064/299,610,385.20 - Step 6: Final answer
x = 126,299,449.80
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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.