Finding the Fourth Proportional to 15,894,480.09, 21,928,122.87 and 9,184,378.93
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Solution
The fourth proportional to 15,894,480.09, 21,928,122.87 and 9,184,378.93 is: 12,670,825.88
Step by Step Solution
- Step 1: Write the proportion equation
15,894,480.09 : 21,928,122.87 = 9,184,378.93 : x - Step 2: Convert to fraction form
15,894,480.09/21,928,122.87 = 9,184,378.93/x - Step 3: Cross multiply
15,894,480.09x = 21,928,122.87 × 9,184,378.93 - Step 4: Simplify right side
15,894,480.09x = 201,396,189,615,757.22 - Step 5: Solve for x
x = 201,396,189,615,757.22/15,894,480.09 - Step 6: Final answer
x = 12,670,825.88
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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.