Finding the Fourth Proportional to 18,313,961.70, 27,470,942.55 and 8,748,023.70
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Solution
The fourth proportional to 18,313,961.70, 27,470,942.55 and 8,748,023.70 is: 13,122,035.55
Step by Step Solution
- Step 1: Write the proportion equation
18,313,961.70 : 27,470,942.55 = 8,748,023.70 : x - Step 2: Convert to fraction form
18,313,961.70/27,470,942.55 = 8,748,023.70/x - Step 3: Cross multiply
18,313,961.70x = 27,470,942.55 × 8,748,023.70 - Step 4: Simplify right side
18,313,961.70x = 240,316,456,488,738.41 - Step 5: Solve for x
x = 240,316,456,488,738.41/18,313,961.70 - Step 6: Final answer
x = 13,122,035.55
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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.