Finding the Fourth Proportional to 117,879,714.84, 161,495,785.57 and 113,461,610.75
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Solution
The fourth proportional to 117,879,714.84, 161,495,785.57 and 113,461,610.75 is: 155,442,961.36
Step by Step Solution
- Step 1: Write the proportion equation
117,879,714.84 : 161,495,785.57 = 113,461,610.75 : x - Step 2: Convert to fraction form
117,879,714.84/161,495,785.57 = 113,461,610.75/x - Step 3: Cross multiply
117,879,714.84x = 161,495,785.57 × 113,461,610.75 - Step 4: Simplify right side
117,879,714.84x = 18,323,571,959,017,676 - Step 5: Solve for x
x = 18,323,571,959,017,676/117,879,714.84 - Step 6: Final answer
x = 155,442,961.36
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.