Finding the Fourth Proportional to 276,162,533.96, 381,247,582.98 and 201,739,526.60
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Solution
The fourth proportional to 276,162,533.96, 381,247,582.98 and 201,739,526.60 is: 278,505,218.67
Step by Step Solution
- Step 1: Write the proportion equation
276,162,533.96 : 381,247,582.98 = 201,739,526.60 : x - Step 2: Convert to fraction form
276,162,533.96/381,247,582.98 = 201,739,526.60/x - Step 3: Cross multiply
276,162,533.96x = 381,247,582.98 × 201,739,526.60 - Step 4: Simplify right side
276,162,533.96x = 76,912,706,907,779,424 - Step 5: Solve for x
x = 76,912,706,907,779,424/276,162,533.96 - Step 6: Final answer
x = 278,505,218.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.