Finding the Fourth Proportional to 293,966,660.80, 405,670,772.59 and 161,804,831.68
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Solution
The fourth proportional to 293,966,660.80, 405,670,772.59 and 161,804,831.68 is: 223,288,895.75
Step by Step Solution
- Step 1: Write the proportion equation
293,966,660.80 : 405,670,772.59 = 161,804,831.68 : x - Step 2: Convert to fraction form
293,966,660.80/405,670,772.59 = 161,804,831.68/x - Step 3: Cross multiply
293,966,660.80x = 405,670,772.59 × 161,804,831.68 - Step 4: Simplify right side
293,966,660.80x = 65,639,491,076,420,504 - Step 5: Solve for x
x = 65,639,491,076,420,504/293,966,660.80 - Step 6: Final answer
x = 223,288,895.75
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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.