Finding the Fourth Proportional to 1,397,154,939.60, 2,095,732,409.40 and 1,189,414,652.70
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Solution
The fourth proportional to 1,397,154,939.60, 2,095,732,409.40 and 1,189,414,652.70 is: 1,784,121,979.05
Step by Step Solution
- Step 1: Write the proportion equation
1,397,154,939.60 : 2,095,732,409.40 = 1,189,414,652.70 : x - Step 2: Convert to fraction form
1,397,154,939.60/2,095,732,409.40 = 1,189,414,652.70/x - Step 3: Cross multiply
1,397,154,939.60x = 2,095,732,409.40 × 1,189,414,652.70 - Step 4: Simplify right side
1,397,154,939.60x = 2,492,694,835,878,635,520 - Step 5: Solve for x
x = 2,492,694,835,878,635,520/1,397,154,939.60 - Step 6: Final answer
x = 1,784,121,979.05
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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.