Finding the Fourth Proportional to 7,169,507.91, 10,743,829.86 and 4,431,208.95
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Solution
The fourth proportional to 7,169,507.91, 10,743,829.86 and 4,431,208.95 is: 6,640,365.79
Step by Step Solution
- Step 1: Write the proportion equation
7,169,507.91 : 10,743,829.86 = 4,431,208.95 : x - Step 2: Convert to fraction form
7,169,507.91/10,743,829.86 = 4,431,208.95/x - Step 3: Cross multiply
7,169,507.91x = 10,743,829.86 × 4,431,208.95 - Step 4: Simplify right side
7,169,507.91x = 47,608,155,049,526.28 - Step 5: Solve for x
x = 47,608,155,049,526.28/7,169,507.91 - Step 6: Final answer
x = 6,640,365.79
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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.