Finding the Fourth Proportional to 21,571,949.70, 32,357,924.55 and 15,548,951.70
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Solution
The fourth proportional to 21,571,949.70, 32,357,924.55 and 15,548,951.70 is: 23,323,427.55
Step by Step Solution
- Step 1: Write the proportion equation
21,571,949.70 : 32,357,924.55 = 15,548,951.70 : x - Step 2: Convert to fraction form
21,571,949.70/32,357,924.55 = 15,548,951.70/x - Step 3: Cross multiply
21,571,949.70x = 32,357,924.55 × 15,548,951.70 - Step 4: Simplify right side
21,571,949.70x = 503,131,805,940,194.25 - Step 5: Solve for x
x = 503,131,805,940,194.25/21,571,949.70 - Step 6: Final answer
x = 23,323,427.55
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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.