Finding the Fourth Proportional to 2,631,728,473.80, 3,947,592,710.70 and 2,218,479,952.20
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Solution
The fourth proportional to 2,631,728,473.80, 3,947,592,710.70 and 2,218,479,952.20 is: 3,327,719,928.30
Step by Step Solution
- Step 1: Write the proportion equation
2,631,728,473.80 : 3,947,592,710.70 = 2,218,479,952.20 : x - Step 2: Convert to fraction form
2,631,728,473.80/3,947,592,710.70 = 2,218,479,952.20/x - Step 3: Cross multiply
2,631,728,473.80x = 3,947,592,710.70 × 2,218,479,952.20 - Step 4: Simplify right side
2,631,728,473.80x = 8,757,655,288,138,803,200 - Step 5: Solve for x
x = 8,757,655,288,138,803,200/2,631,728,473.80 - Step 6: Final answer
x = 3,327,719,928.30
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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.