Finding the Fourth Proportional to 731,246,180.36, 1,009,121,645.20 and 396,718,685.48
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Solution
The fourth proportional to 731,246,180.36, 1,009,121,645.20 and 396,718,685.48 is: 547,472,825.60
Step by Step Solution
- Step 1: Write the proportion equation
731,246,180.36 : 1,009,121,645.20 = 396,718,685.48 : x - Step 2: Convert to fraction form
731,246,180.36/1,009,121,645.20 = 396,718,685.48/x - Step 3: Cross multiply
731,246,180.36x = 1,009,121,645.20 × 396,718,685.48 - Step 4: Simplify right side
731,246,180.36x = 400,337,412,573,158,976 - Step 5: Solve for x
x = 400,337,412,573,158,976/731,246,180.36 - Step 6: Final answer
x = 547,472,825.60
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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.