Finding the Fourth Proportional to 7,135,912.13, 9,847,563.80 and 3,872,726.09
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Solution
The fourth proportional to 7,135,912.13, 9,847,563.80 and 3,872,726.09 is: 5,344,364.74
Step by Step Solution
- Step 1: Write the proportion equation
7,135,912.13 : 9,847,563.80 = 3,872,726.09 : x - Step 2: Convert to fraction form
7,135,912.13/9,847,563.80 = 3,872,726.09/x - Step 3: Cross multiply
7,135,912.13x = 9,847,563.80 × 3,872,726.09 - Step 4: Simplify right side
7,135,912.13x = 38,136,917,182,598.09 - Step 5: Solve for x
x = 38,136,917,182,598.09/7,135,912.13 - Step 6: Final answer
x = 5,344,364.74
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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.