Finding the Fourth Proportional to 88,629,880.82, 122,329,642.85 and 51,972,261.62
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Solution
The fourth proportional to 88,629,880.82, 122,329,642.85 and 51,972,261.62 is: 71,733,687.81
Step by Step Solution
- Step 1: Write the proportion equation
88,629,880.82 : 122,329,642.85 = 51,972,261.62 : x - Step 2: Convert to fraction form
88,629,880.82/122,329,642.85 = 51,972,261.62/x - Step 3: Cross multiply
88,629,880.82x = 122,329,642.85 × 51,972,261.62 - Step 4: Simplify right side
88,629,880.82x = 6,357,748,201,209,853 - Step 5: Solve for x
x = 6,357,748,201,209,853/88,629,880.82 - Step 6: Final answer
x = 71,733,687.81
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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.