Finding the Fourth Proportional to 2,083,996,915.20, 3,125,995,372.80 and 856,757,491.20
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Solution
The fourth proportional to 2,083,996,915.20, 3,125,995,372.80 and 856,757,491.20 is: 1,285,136,236.80
Step by Step Solution
- Step 1: Write the proportion equation
2,083,996,915.20 : 3,125,995,372.80 = 856,757,491.20 : x - Step 2: Convert to fraction form
2,083,996,915.20/3,125,995,372.80 = 856,757,491.20/x - Step 3: Cross multiply
2,083,996,915.20x = 3,125,995,372.80 × 856,757,491.20 - Step 4: Simplify right side
2,083,996,915.20x = 2,678,219,953,102,937,088 - Step 5: Solve for x
x = 2,678,219,953,102,937,088/2,083,996,915.20 - Step 6: Final answer
x = 1,285,136,236.80
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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.