Finding the Fourth Proportional to 2,520,635,431.70, 3,780,901,226.57 and 840,042,964.75
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Solution
The fourth proportional to 2,520,635,431.70, 3,780,901,226.57 and 840,042,964.75 is: 1,260,047,143.61
Step by Step Solution
- Step 1: Write the proportion equation
2,520,635,431.70 : 3,780,901,226.57 = 840,042,964.75 : x - Step 2: Convert to fraction form
2,520,635,431.70/3,780,901,226.57 = 840,042,964.75/x - Step 3: Cross multiply
2,520,635,431.70x = 3,780,901,226.57 × 840,042,964.75 - Step 4: Simplify right side
2,520,635,431.70x = 3,176,119,475,794,774,528 - Step 5: Solve for x
x = 3,176,119,475,794,774,528/2,520,635,431.70 - Step 6: Final answer
x = 1,260,047,143.61
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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.