Finding the Fourth Proportional to 21,368,749.44, 29,485,612.60 and 12,072,927.68
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Solution
The fourth proportional to 21,368,749.44, 29,485,612.60 and 12,072,927.68 is: 16,658,797.44
Step by Step Solution
- Step 1: Write the proportion equation
21,368,749.44 : 29,485,612.60 = 12,072,927.68 : x - Step 2: Convert to fraction form
21,368,749.44/29,485,612.60 = 12,072,927.68/x - Step 3: Cross multiply
21,368,749.44x = 29,485,612.60 × 12,072,927.68 - Step 4: Simplify right side
21,368,749.44x = 355,977,668,520,296.75 - Step 5: Solve for x
x = 355,977,668,520,296.75/21,368,749.44 - Step 6: Final answer
x = 16,658,797.44
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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.