Finding the Fourth Proportional to 14,128,755.21, 21,164,756.70 and 6,441,826.10
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Solution
The fourth proportional to 14,128,755.21, 21,164,756.70 and 6,441,826.10 is: 9,649,801.42
Step by Step Solution
- Step 1: Write the proportion equation
14,128,755.21 : 21,164,756.70 = 6,441,826.10 : x - Step 2: Convert to fraction form
14,128,755.21/21,164,756.70 = 6,441,826.10/x - Step 3: Cross multiply
14,128,755.21x = 21,164,756.70 × 6,441,826.10 - Step 4: Simplify right side
14,128,755.21x = 136,339,682,110,209.86 - Step 5: Solve for x
x = 136,339,682,110,209.86/14,128,755.21 - Step 6: Final answer
x = 9,649,801.42
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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.