Finding the Fourth Proportional to 88,287,645.43, 121,858,574.31 and 68,402,078.14
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Solution
The fourth proportional to 88,287,645.43, 121,858,574.31 and 68,402,078.14 is: 94,411,621.03
Step by Step Solution
- Step 1: Write the proportion equation
88,287,645.43 : 121,858,574.31 = 68,402,078.14 : x - Step 2: Convert to fraction form
88,287,645.43/121,858,574.31 = 68,402,078.14/x - Step 3: Cross multiply
88,287,645.43x = 121,858,574.31 × 68,402,078.14 - Step 4: Simplify right side
88,287,645.43x = 8,335,379,721,933,478 - Step 5: Solve for x
x = 8,335,379,721,933,478/88,287,645.43 - Step 6: Final answer
x = 94,411,621.03
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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.