Finding the Fourth Proportional to 2,128,100.70, 3,192,151.05 and 1,330,283.10
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Solution
The fourth proportional to 2,128,100.70, 3,192,151.05 and 1,330,283.10 is: 1,995,424.65
Step by Step Solution
- Step 1: Write the proportion equation
2,128,100.70 : 3,192,151.05 = 1,330,283.10 : x - Step 2: Convert to fraction form
2,128,100.70/3,192,151.05 = 1,330,283.10/x - Step 3: Cross multiply
2,128,100.70x = 3,192,151.05 × 1,330,283.10 - Step 4: Simplify right side
2,128,100.70x = 4,246,464,594,462.26 - Step 5: Solve for x
x = 4,246,464,594,462.26/2,128,100.70 - Step 6: Final answer
x = 1,995,424.65
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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.