Finding the Fourth Proportional to 19,820,928.02, 27,346,750.61 and 11,555,139.44
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Solution
The fourth proportional to 19,820,928.02, 27,346,750.61 and 11,555,139.44 is: 15,942,518.75
Step by Step Solution
- Step 1: Write the proportion equation
19,820,928.02 : 27,346,750.61 = 11,555,139.44 : x - Step 2: Convert to fraction form
19,820,928.02/27,346,750.61 = 11,555,139.44/x - Step 3: Cross multiply
19,820,928.02x = 27,346,750.61 × 11,555,139.44 - Step 4: Simplify right side
19,820,928.02x = 315,995,516,540,046.25 - Step 5: Solve for x
x = 315,995,516,540,046.25/19,820,928.02 - Step 6: Final answer
x = 15,942,518.75
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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.