Finding the Fourth Proportional to 276,840,437.20, 415,260,655.80 and 133,513,205.20
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Solution
The fourth proportional to 276,840,437.20, 415,260,655.80 and 133,513,205.20 is: 200,269,807.80
Step by Step Solution
- Step 1: Write the proportion equation
276,840,437.20 : 415,260,655.80 = 133,513,205.20 : x - Step 2: Convert to fraction form
276,840,437.20/415,260,655.80 = 133,513,205.20/x - Step 3: Cross multiply
276,840,437.20x = 415,260,655.80 × 133,513,205.20 - Step 4: Simplify right side
276,840,437.20x = 55,442,781,149,311,976 - Step 5: Solve for x
x = 55,442,781,149,311,976/276,840,437.20 - Step 6: Final answer
x = 200,269,807.80
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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.