Finding the Fourth Proportional to 276,840,435.20, 415,260,652.80 and 133,513,203.20
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Solution
The fourth proportional to 276,840,435.20, 415,260,652.80 and 133,513,203.20 is: 200,269,804.80
Step by Step Solution
- Step 1: Write the proportion equation
276,840,435.20 : 415,260,652.80 = 133,513,203.20 : x - Step 2: Convert to fraction form
276,840,435.20/415,260,652.80 = 133,513,203.20/x - Step 3: Cross multiply
276,840,435.20x = 415,260,652.80 × 133,513,203.20 - Step 4: Simplify right side
276,840,435.20x = 55,442,779,918,251,048 - Step 5: Solve for x
x = 55,442,779,918,251,048/276,840,435.20 - Step 6: Final answer
x = 200,269,804.80
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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.