Finding the Fourth Proportional to 2,182,135.78, 3,011,440.79 and 1,215,266.07
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Solution
The fourth proportional to 2,182,135.78, 3,011,440.79 and 1,215,266.07 is: 1,677,119.20
Step by Step Solution
- Step 1: Write the proportion equation
2,182,135.78 : 3,011,440.79 = 1,215,266.07 : x - Step 2: Convert to fraction form
2,182,135.78/3,011,440.79 = 1,215,266.07/x - Step 3: Cross multiply
2,182,135.78x = 3,011,440.79 × 1,215,266.07 - Step 4: Simplify right side
2,182,135.78x = 3,659,701,806,649.40 - Step 5: Solve for x
x = 3,659,701,806,649.40/2,182,135.78 - Step 6: Final answer
x = 1,677,119.20
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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.