Finding the Fourth Proportional to 2,171,431,834.63, 3,255,660,785.35 and 1,105,791,913.49
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Solution
The fourth proportional to 2,171,431,834.63, 3,255,660,785.35 and 1,105,791,913.49 is: 1,657,930,639.18
Step by Step Solution
- Step 1: Write the proportion equation
2,171,431,834.63 : 3,255,660,785.35 = 1,105,791,913.49 : x - Step 2: Convert to fraction form
2,171,431,834.63/3,255,660,785.35 = 1,105,791,913.49/x - Step 3: Cross multiply
2,171,431,834.63x = 3,255,660,785.35 × 1,105,791,913.49 - Step 4: Simplify right side
2,171,431,834.63x = 3,600,083,369,522,025,472 - Step 5: Solve for x
x = 3,600,083,369,522,025,472/2,171,431,834.63 - Step 6: Final answer
x = 1,657,930,639.18
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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.