Finding the Fourth Proportional to 13,745,133.24, 18,967,177.68 and 7,944,290.70
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Solution
The fourth proportional to 13,745,133.24, 18,967,177.68 and 7,944,290.70 is: 10,962,481.82
Step by Step Solution
- Step 1: Write the proportion equation
13,745,133.24 : 18,967,177.68 = 7,944,290.70 : x - Step 2: Convert to fraction form
13,745,133.24/18,967,177.68 = 7,944,290.70/x - Step 3: Cross multiply
13,745,133.24x = 18,967,177.68 × 7,944,290.70 - Step 4: Simplify right side
13,745,133.24x = 150,680,773,248,471.56 - Step 5: Solve for x
x = 150,680,773,248,471.56/13,745,133.24 - Step 6: Final answer
x = 10,962,481.82
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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.