Finding the Fourth Proportional to 5,772,128.76, 7,965,547.02 and 3,193,918.20
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Solution
The fourth proportional to 5,772,128.76, 7,965,547.02 and 3,193,918.20 is: 4,407,612.28
Step by Step Solution
- Step 1: Write the proportion equation
5,772,128.76 : 7,965,547.02 = 3,193,918.20 : x - Step 2: Convert to fraction form
5,772,128.76/7,965,547.02 = 3,193,918.20/x - Step 3: Cross multiply
5,772,128.76x = 7,965,547.02 × 3,193,918.20 - Step 4: Simplify right side
5,772,128.76x = 25,441,305,600,133.77 - Step 5: Solve for x
x = 25,441,305,600,133.77/5,772,128.76 - Step 6: Final answer
x = 4,407,612.28
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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.