Finding the Fourth Proportional to 4,000,076.18, 5,520,119.77 and 2,164,534.49
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Solution
The fourth proportional to 4,000,076.18, 5,520,119.77 and 2,164,534.49 is: 2,987,065.51
Step by Step Solution
- Step 1: Write the proportion equation
4,000,076.18 : 5,520,119.77 = 2,164,534.49 : x - Step 2: Convert to fraction form
4,000,076.18/5,520,119.77 = 2,164,534.49/x - Step 3: Cross multiply
4,000,076.18x = 5,520,119.77 × 2,164,534.49 - Step 4: Simplify right side
4,000,076.18x = 11,948,489,603,495.27 - Step 5: Solve for x
x = 11,948,489,603,495.27/4,000,076.18 - Step 6: Final answer
x = 2,987,065.51
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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.