Finding the Fourth Proportional to 131,120,797.26, 180,941,957.82 and 72,382,201.68
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Solution
The fourth proportional to 131,120,797.26, 180,941,957.82 and 72,382,201.68 is: 99,884,820.39
Step by Step Solution
- Step 1: Write the proportion equation
131,120,797.26 : 180,941,957.82 = 72,382,201.68 : x - Step 2: Convert to fraction form
131,120,797.26/180,941,957.82 = 72,382,201.68/x - Step 3: Cross multiply
131,120,797.26x = 180,941,957.82 × 72,382,201.68 - Step 4: Simplify right side
131,120,797.26x = 13,096,977,283,301,294 - Step 5: Solve for x
x = 13,096,977,283,301,294/131,120,797.26 - Step 6: Final answer
x = 99,884,820.39
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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.