Finding the Fourth Proportional to 1,437,936,440.40, 2,156,904,660.60 and 740,579,560.20
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Solution
The fourth proportional to 1,437,936,440.40, 2,156,904,660.60 and 740,579,560.20 is: 1,110,869,340.30
Step by Step Solution
- Step 1: Write the proportion equation
1,437,936,440.40 : 2,156,904,660.60 = 740,579,560.20 : x - Step 2: Convert to fraction form
1,437,936,440.40/2,156,904,660.60 = 740,579,560.20/x - Step 3: Cross multiply
1,437,936,440.40x = 2,156,904,660.60 × 740,579,560.20 - Step 4: Simplify right side
1,437,936,440.40x = 1,597,359,504,940,478,208 - Step 5: Solve for x
x = 1,597,359,504,940,478,208/1,437,936,440.40 - Step 6: Final answer
x = 1,110,869,340.30
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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.