Finding the Fourth Proportional to 299,610,386.20, 449,415,579.30 and 84,199,634.20
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Solution
The fourth proportional to 299,610,386.20, 449,415,579.30 and 84,199,634.20 is: 126,299,451.30
Step by Step Solution
- Step 1: Write the proportion equation
299,610,386.20 : 449,415,579.30 = 84,199,634.20 : x - Step 2: Convert to fraction form
299,610,386.20/449,415,579.30 = 84,199,634.20/x - Step 3: Cross multiply
299,610,386.20x = 449,415,579.30 × 84,199,634.20 - Step 4: Simplify right side
299,610,386.20x = 37,840,627,380,841,096 - Step 5: Solve for x
x = 37,840,627,380,841,096/299,610,386.20 - Step 6: Final answer
x = 126,299,451.30
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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.