Finding the Fourth Proportional to 7,237,233.20, 10,855,849.80 and 1,918,449.20
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Solution
The fourth proportional to 7,237,233.20, 10,855,849.80 and 1,918,449.20 is: 2,877,673.80
Step by Step Solution
- Step 1: Write the proportion equation
7,237,233.20 : 10,855,849.80 = 1,918,449.20 : x - Step 2: Convert to fraction form
7,237,233.20/10,855,849.80 = 1,918,449.20/x - Step 3: Cross multiply
7,237,233.20x = 10,855,849.80 × 1,918,449.20 - Step 4: Simplify right side
7,237,233.20x = 20,826,396,364,130.16 - Step 5: Solve for x
x = 20,826,396,364,130.16/7,237,233.20 - Step 6: Final answer
x = 2,877,673.80
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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.