Finding the Fourth Proportional to 13,371,188.90, 18,381,199.07 and 11,503,739.97
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Solution
The fourth proportional to 13,371,188.90, 18,381,199.07 and 11,503,739.97 is: 15,814,041.38
Step by Step Solution
- Step 1: Write the proportion equation
13,371,188.90 : 18,381,199.07 = 11,503,739.97 : x - Step 2: Convert to fraction form
13,371,188.90/18,381,199.07 = 11,503,739.97/x - Step 3: Cross multiply
13,371,188.90x = 18,381,199.07 × 11,503,739.97 - Step 4: Simplify right side
13,371,188.90x = 211,452,534,466,845.22 - Step 5: Solve for x
x = 211,452,534,466,845.22/13,371,188.90 - Step 6: Final answer
x = 15,814,041.38
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.