Finding the Fourth Proportional to 136,810,911.56, 188,799,239.95 and 74,087,117.62
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Solution
The fourth proportional to 136,810,911.56, 188,799,239.95 and 74,087,117.62 is: 102,240,320.87
Step by Step Solution
- Step 1: Write the proportion equation
136,810,911.56 : 188,799,239.95 = 74,087,117.62 : x - Step 2: Convert to fraction form
136,810,911.56/188,799,239.95 = 74,087,117.62/x - Step 3: Cross multiply
136,810,911.56x = 188,799,239.95 × 74,087,117.62 - Step 4: Simplify right side
136,810,911.56x = 13,987,591,496,085,038 - Step 5: Solve for x
x = 13,987,591,496,085,038/136,810,911.56 - Step 6: Final answer
x = 102,240,320.87
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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.