Finding the Fourth Proportional to 22,261,653.80, 33,392,480.70 and 18,435,278.60
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Solution
The fourth proportional to 22,261,653.80, 33,392,480.70 and 18,435,278.60 is: 27,652,917.90
Step by Step Solution
- Step 1: Write the proportion equation
22,261,653.80 : 33,392,480.70 = 18,435,278.60 : x - Step 2: Convert to fraction form
22,261,653.80/33,392,480.70 = 18,435,278.60/x - Step 3: Cross multiply
22,261,653.80x = 33,392,480.70 × 18,435,278.60 - Step 4: Simplify right side
22,261,653.80x = 615,599,684,849,623 - Step 5: Solve for x
x = 615,599,684,849,623/22,261,653.80 - Step 6: Final answer
x = 27,652,917.90
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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.