Finding the Fourth Proportional to 7,653,121.21, 10,561,306.26 and 4,215,362.23
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Solution
The fourth proportional to 7,653,121.21, 10,561,306.26 and 4,215,362.23 is: 5,817,199.32
Step by Step Solution
- Step 1: Write the proportion equation
7,653,121.21 : 10,561,306.26 = 4,215,362.23 : x - Step 2: Convert to fraction form
7,653,121.21/10,561,306.26 = 4,215,362.23/x - Step 3: Cross multiply
7,653,121.21x = 10,561,306.26 × 4,215,362.23 - Step 4: Simplify right side
7,653,121.21x = 44,519,731,507,866.56 - Step 5: Solve for x
x = 44,519,731,507,866.56/7,653,121.21 - Step 6: Final answer
x = 5,817,199.32
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1.5x scale
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.