Finding the Fourth Proportional to 2,916,782,615.76, 4,025,186,904.84 and 1,727,419,232.40
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Solution
The fourth proportional to 2,916,782,615.76, 4,025,186,904.84 and 1,727,419,232.40 is: 2,383,854,468.91
Step by Step Solution
- Step 1: Write the proportion equation
2,916,782,615.76 : 4,025,186,904.84 = 1,727,419,232.40 : x - Step 2: Convert to fraction form
2,916,782,615.76/4,025,186,904.84 = 1,727,419,232.40/x - Step 3: Cross multiply
2,916,782,615.76x = 4,025,186,904.84 × 1,727,419,232.40 - Step 4: Simplify right side
2,916,782,615.76x = 6,953,185,273,425,245,184 - Step 5: Solve for x
x = 6,953,185,273,425,245,184/2,916,782,615.76 - Step 6: Final answer
x = 2,383,854,468.91
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1.5x scale
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.