Finding the Fourth Proportional to 5,269,139.68, 7,271,419.92 and 2,854,691.68
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Solution
The fourth proportional to 5,269,139.68, 7,271,419.92 and 2,854,691.68 is: 3,939,478.40
Step by Step Solution
- Step 1: Write the proportion equation
5,269,139.68 : 7,271,419.92 = 2,854,691.68 : x - Step 2: Convert to fraction form
5,269,139.68/7,271,419.92 = 2,854,691.68/x - Step 3: Cross multiply
5,269,139.68x = 7,271,419.92 × 2,854,691.68 - Step 4: Simplify right side
5,269,139.68x = 20,757,661,947,410.27 - Step 5: Solve for x
x = 20,757,661,947,410.27/5,269,139.68 - Step 6: Final answer
x = 3,939,478.40
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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.