Finding the Fourth Proportional to 7,467,438,572.57, 11,209,132,010.78 and 3,215,236,393.37
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Solution
The fourth proportional to 7,467,438,572.57, 11,209,132,010.78 and 3,215,236,393.37 is: 4,826,288,000.75
Step by Step Solution
- Step 1: Write the proportion equation
7,467,438,572.57 : 11,209,132,010.78 = 3,215,236,393.37 : x - Step 2: Convert to fraction form
7,467,438,572.57/11,209,132,010.78 = 3,215,236,393.37/x - Step 3: Cross multiply
7,467,438,572.57x = 11,209,132,010.78 × 3,215,236,393.37 - Step 4: Simplify right side
7,467,438,572.57x = 36,040,009,179,076,378,624 - Step 5: Solve for x
x = 36,040,009,179,076,378,624/7,467,438,572.57 - Step 6: Final answer
x = 4,826,288,000.75
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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.