Finding the Fourth Proportional to 1,375,269,998.34, 1,898,037,144.09 and 810,882,630.66
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Solution
The fourth proportional to 1,375,269,998.34, 1,898,037,144.09 and 810,882,630.66 is: 1,119,115,049.66
Step by Step Solution
- Step 1: Write the proportion equation
1,375,269,998.34 : 1,898,037,144.09 = 810,882,630.66 : x - Step 2: Convert to fraction form
1,375,269,998.34/1,898,037,144.09 = 810,882,630.66/x - Step 3: Cross multiply
1,375,269,998.34x = 1,898,037,144.09 × 810,882,630.66 - Step 4: Simplify right side
1,375,269,998.34x = 1,539,085,352,490,092,544 - Step 5: Solve for x
x = 1,539,085,352,490,092,544/1,375,269,998.34 - Step 6: Final answer
x = 1,119,115,049.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.