Finding the Fourth Proportional to 13,603,401.97, 18,771,306.74 and 8,375,580.77
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Solution
The fourth proportional to 13,603,401.97, 18,771,306.74 and 8,375,580.77 is: 11,557,446.89
Step by Step Solution
- Step 1: Write the proportion equation
13,603,401.97 : 18,771,306.74 = 8,375,580.77 : x - Step 2: Convert to fraction form
13,603,401.97/18,771,306.74 = 8,375,580.77/x - Step 3: Cross multiply
13,603,401.97x = 18,771,306.74 × 8,375,580.77 - Step 4: Simplify right side
13,603,401.97x = 157,220,595,759,315.38 - Step 5: Solve for x
x = 157,220,595,759,315.38/13,603,401.97 - Step 6: Final answer
x = 11,557,446.89
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1.5x scale
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.