Finding the Fourth Proportional to 11,205,862.60, 16,808,793.90 and 11,121,881.80
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Solution
The fourth proportional to 11,205,862.60, 16,808,793.90 and 11,121,881.80 is: 16,682,822.70
Step by Step Solution
- Step 1: Write the proportion equation
11,205,862.60 : 16,808,793.90 = 11,121,881.80 : x - Step 2: Convert to fraction form
11,205,862.60/16,808,793.90 = 11,121,881.80/x - Step 3: Cross multiply
11,205,862.60x = 16,808,793.90 × 11,121,881.80 - Step 4: Simplify right side
11,205,862.60x = 186,945,418,956,361.03 - Step 5: Solve for x
x = 186,945,418,956,361.03/11,205,862.60 - Step 6: Final answer
x = 16,682,822.70
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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.