Finding the Fourth Proportional to 22,028,348.76, 30,392,491.99 and 13,204,580.60
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Solution
The fourth proportional to 22,028,348.76, 30,392,491.99 and 13,204,580.60 is: 18,218,347.39
Step by Step Solution
- Step 1: Write the proportion equation
22,028,348.76 : 30,392,491.99 = 13,204,580.60 : x - Step 2: Convert to fraction form
22,028,348.76/30,392,491.99 = 13,204,580.60/x - Step 3: Cross multiply
22,028,348.76x = 30,392,491.99 × 13,204,580.60 - Step 4: Simplify right side
22,028,348.76x = 401,320,110,116,809.38 - Step 5: Solve for x
x = 401,320,110,116,809.38/22,028,348.76 - Step 6: Final answer
x = 18,218,347.39
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1.5x scale
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.