Finding the Fourth Proportional to 118,346,042.31, 163,317,760.14 and 66,135,078.11
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Solution
The fourth proportional to 118,346,042.31, 163,317,760.14 and 66,135,078.11 is: 91,266,531.71
Step by Step Solution
- Step 1: Write the proportion equation
118,346,042.31 : 163,317,760.14 = 66,135,078.11 : x - Step 2: Convert to fraction form
118,346,042.31/163,317,760.14 = 66,135,078.11/x - Step 3: Cross multiply
118,346,042.31x = 163,317,760.14 × 66,135,078.11 - Step 4: Simplify right side
118,346,042.31x = 10,801,032,822,792,554 - Step 5: Solve for x
x = 10,801,032,822,792,554/118,346,042.31 - Step 6: Final answer
x = 91,266,531.71
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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.