Finding the Fourth Proportional to 722,293,340.40, 1,083,440,010.60 and 472,622,358.60
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Solution
The fourth proportional to 722,293,340.40, 1,083,440,010.60 and 472,622,358.60 is: 708,933,537.90
Step by Step Solution
- Step 1: Write the proportion equation
722,293,340.40 : 1,083,440,010.60 = 472,622,358.60 : x - Step 2: Convert to fraction form
722,293,340.40/1,083,440,010.60 = 472,622,358.60/x - Step 3: Cross multiply
722,293,340.40x = 1,083,440,010.60 × 472,622,358.60 - Step 4: Simplify right side
722,293,340.40x = 512,057,973,211,380,992 - Step 5: Solve for x
x = 512,057,973,211,380,992/722,293,340.40 - Step 6: Final answer
x = 708,933,537.90
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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.