Finding the Fourth Proportional to 125,485,884.12, 173,186,728.41 and 70,481,740.62
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Solution
The fourth proportional to 125,485,884.12, 173,186,728.41 and 70,481,740.62 is: 97,273,905.80
Step by Step Solution
- Step 1: Write the proportion equation
125,485,884.12 : 173,186,728.41 = 70,481,740.62 : x - Step 2: Convert to fraction form
125,485,884.12/173,186,728.41 = 70,481,740.62/x - Step 3: Cross multiply
125,485,884.12x = 173,186,728.41 × 70,481,740.62 - Step 4: Simplify right side
125,485,884.12x = 12,206,502,070,620,006 - Step 5: Solve for x
x = 12,206,502,070,620,006/125,485,884.12 - Step 6: Final answer
x = 97,273,905.80
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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.