Finding the Fourth Proportional to 18,534,451.40, 27,781,401.90 and 6,561,024.20
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Solution
The fourth proportional to 18,534,451.40, 27,781,401.90 and 6,561,024.20 is: 9,834,359.07
Step by Step Solution
- Step 1: Write the proportion equation
18,534,451.40 : 27,781,401.90 = 6,561,024.20 : x - Step 2: Convert to fraction form
18,534,451.40/27,781,401.90 = 6,561,024.20/x - Step 3: Cross multiply
18,534,451.40x = 27,781,401.90 × 6,561,024.20 - Step 4: Simplify right side
18,534,451.40x = 182,274,450,175,825.97 - Step 5: Solve for x
x = 182,274,450,175,825.97/18,534,451.40 - Step 6: Final answer
x = 9,834,359.07
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1.5x scale
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.