Finding the Fourth Proportional to 1,982,609,813.48, 2,736,202,221.69 and 1,135,949,440.49
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Solution
The fourth proportional to 1,982,609,813.48, 2,736,202,221.69 and 1,135,949,440.49 is: 1,567,725,208.29
Step by Step Solution
- Step 1: Write the proportion equation
1,982,609,813.48 : 2,736,202,221.69 = 1,135,949,440.49 : x - Step 2: Convert to fraction form
1,982,609,813.48/2,736,202,221.69 = 1,135,949,440.49/x - Step 3: Cross multiply
1,982,609,813.48x = 2,736,202,221.69 × 1,135,949,440.49 - Step 4: Simplify right side
1,982,609,813.48x = 3,108,187,382,782,568,960 - Step 5: Solve for x
x = 3,108,187,382,782,568,960/1,982,609,813.48 - Step 6: Final answer
x = 1,567,725,208.29
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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.