Finding the Fourth Proportional to 215,291,220.80, 322,936,831.20 and 177,027,468.80
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Solution
The fourth proportional to 215,291,220.80, 322,936,831.20 and 177,027,468.80 is: 265,541,203.20
Step by Step Solution
- Step 1: Write the proportion equation
215,291,220.80 : 322,936,831.20 = 177,027,468.80 : x - Step 2: Convert to fraction form
215,291,220.80/322,936,831.20 = 177,027,468.80/x - Step 3: Cross multiply
215,291,220.80x = 322,936,831.20 × 177,027,468.80 - Step 4: Simplify right side
215,291,220.80x = 57,168,689,809,628,872 - Step 5: Solve for x
x = 57,168,689,809,628,872/215,291,220.80 - Step 6: Final answer
x = 265,541,203.20
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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.