Finding the Fourth Proportional to 2,083,996,919.20, 3,125,995,378.80 and 856,757,495.20
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Solution
The fourth proportional to 2,083,996,919.20, 3,125,995,378.80 and 856,757,495.20 is: 1,285,136,242.80
Step by Step Solution
- Step 1: Write the proportion equation
2,083,996,919.20 : 3,125,995,378.80 = 856,757,495.20 : x - Step 2: Convert to fraction form
2,083,996,919.20/3,125,995,378.80 = 856,757,495.20/x - Step 3: Cross multiply
2,083,996,919.20x = 3,125,995,378.80 × 856,757,495.20 - Step 4: Simplify right side
2,083,996,919.20x = 2,678,219,970,747,463,680 - Step 5: Solve for x
x = 2,678,219,970,747,463,680/2,083,996,919.20 - Step 6: Final answer
x = 1,285,136,242.80
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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.