Finding the Fourth Proportional to 19,189,206.36, 26,478,546.57 and 12,322,988.64
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Solution
The fourth proportional to 19,189,206.36, 26,478,546.57 and 12,322,988.64 is: 17,004,081.49
Step by Step Solution
- Step 1: Write the proportion equation
19,189,206.36 : 26,478,546.57 = 12,322,988.64 : x - Step 2: Convert to fraction form
19,189,206.36/26,478,546.57 = 12,322,988.64/x - Step 3: Cross multiply
19,189,206.36x = 26,478,546.57 × 12,322,988.64 - Step 4: Simplify right side
19,189,206.36x = 326,294,828,585,821 - Step 5: Solve for x
x = 326,294,828,585,821/19,189,206.36 - Step 6: Final answer
x = 17,004,081.49
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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.