Finding the Fourth Proportional to 1,825,292,912.64, 2,737,745,274.88 and 515,162,572.80
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Solution
The fourth proportional to 1,825,292,912.64, 2,737,745,274.88 and 515,162,572.80 is: 772,689,078.95
Step by Step Solution
- Step 1: Write the proportion equation
1,825,292,912.64 : 2,737,745,274.88 = 515,162,572.80 : x - Step 2: Convert to fraction form
1,825,292,912.64/2,737,745,274.88 = 515,162,572.80/x - Step 3: Cross multiply
1,825,292,912.64x = 2,737,745,274.88 × 515,162,572.80 - Step 4: Simplify right side
1,825,292,912.64x = 1,410,383,899,478,224,128 - Step 5: Solve for x
x = 1,410,383,899,478,224,128/1,825,292,912.64 - Step 6: Final answer
x = 772,689,078.95
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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.