Finding the Fourth Proportional to 7,182,809.07, 9,912,485.84 and 3,919,833.96
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Solution
The fourth proportional to 7,182,809.07, 9,912,485.84 and 3,919,833.96 is: 5,409,485.09
Step by Step Solution
- Step 1: Write the proportion equation
7,182,809.07 : 9,912,485.84 = 3,919,833.96 : x - Step 2: Convert to fraction form
7,182,809.07/9,912,485.84 = 3,919,833.96/x - Step 3: Cross multiply
7,182,809.07x = 9,912,485.84 × 3,919,833.96 - Step 4: Simplify right side
7,182,809.07x = 38,855,298,604,051.96 - Step 5: Solve for x
x = 38,855,298,604,051.96/7,182,809.07 - Step 6: Final answer
x = 5,409,485.09
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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.