Finding the Fourth Proportional to 15,028,348.47, 20,736,908.34 and 8,412,593.07
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Solution
The fourth proportional to 15,028,348.47, 20,736,908.34 and 8,412,593.07 is: 11,608,139.90
Step by Step Solution
- Step 1: Write the proportion equation
15,028,348.47 : 20,736,908.34 = 8,412,593.07 : x - Step 2: Convert to fraction form
15,028,348.47/20,736,908.34 = 8,412,593.07/x - Step 3: Cross multiply
15,028,348.47x = 20,736,908.34 × 8,412,593.07 - Step 4: Simplify right side
15,028,348.47x = 174,451,171,394,309.22 - Step 5: Solve for x
x = 174,451,171,394,309.22/15,028,348.47 - Step 6: Final answer
x = 11,608,139.90
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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.