Finding the Fourth Proportional to 4,189,575.68, 5,781,655.04 and 2,378,780.16
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Solution
The fourth proportional to 4,189,575.68, 5,781,655.04 and 2,378,780.16 is: 3,282,739.67
Step by Step Solution
- Step 1: Write the proportion equation
4,189,575.68 : 5,781,655.04 = 2,378,780.16 : x - Step 2: Convert to fraction form
4,189,575.68/5,781,655.04 = 2,378,780.16/x - Step 3: Cross multiply
4,189,575.68x = 5,781,655.04 × 2,378,780.16 - Step 4: Simplify right side
4,189,575.68x = 13,753,286,301,116.01 - Step 5: Solve for x
x = 13,753,286,301,116.01/4,189,575.68 - Step 6: Final answer
x = 3,282,739.67
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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.