Finding the Fourth Proportional to 13,493,572.18, 20,240,417.30 and 4,271,589.68
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Solution
The fourth proportional to 13,493,572.18, 20,240,417.30 and 4,271,589.68 is: 6,407,403.20
Step by Step Solution
- Step 1: Write the proportion equation
13,493,572.18 : 20,240,417.30 = 4,271,589.68 : x - Step 2: Convert to fraction form
13,493,572.18/20,240,417.30 = 4,271,589.68/x - Step 3: Cross multiply
13,493,572.18x = 20,240,417.30 × 4,271,589.68 - Step 4: Simplify right side
13,493,572.18x = 86,458,757,535,013.44 - Step 5: Solve for x
x = 86,458,757,535,013.44/13,493,572.18 - Step 6: Final answer
x = 6,407,403.20
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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.