Finding the Fourth Proportional to 22,395,220.23, 30,901,725.79 and 12,972,660.54
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Solution
The fourth proportional to 22,395,220.23, 30,901,725.79 and 12,972,660.54 is: 17,900,140.94
Step by Step Solution
- Step 1: Write the proportion equation
22,395,220.23 : 30,901,725.79 = 12,972,660.54 : x - Step 2: Convert to fraction form
22,395,220.23/30,901,725.79 = 12,972,660.54/x - Step 3: Cross multiply
22,395,220.23x = 30,901,725.79 × 12,972,660.54 - Step 4: Simplify right side
22,395,220.23x = 400,877,598,625,520.25 - Step 5: Solve for x
x = 400,877,598,625,520.25/22,395,220.23 - Step 6: Final answer
x = 17,900,140.94
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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.