Finding the Fourth Proportional to 276,840,901.80, 415,261,352.70 and 276,840,901.80
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Solution
The fourth proportional to 276,840,901.80, 415,261,352.70 and 276,840,901.80 is: 415,261,352.70
Step by Step Solution
- Step 1: Write the proportion equation
276,840,901.80 : 415,261,352.70 = 276,840,901.80 : x - Step 2: Convert to fraction form
276,840,901.80/415,261,352.70 = 276,840,901.80/x - Step 3: Cross multiply
276,840,901.80x = 415,261,352.70 × 276,840,901.80 - Step 4: Simplify right side
276,840,901.80x = 114,961,327,364,155,872 - Step 5: Solve for x
x = 114,961,327,364,155,872/276,840,901.80 - Step 6: Final answer
x = 415,261,352.70
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1.5x scale
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.