Finding the Fourth Proportional to 99,213,137.64, 136,911,135.60 and 55,161,107.01
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Solution
The fourth proportional to 99,213,137.64, 136,911,135.60 and 55,161,107.01 is: 76,120,662.86
Step by Step Solution
- Step 1: Write the proportion equation
99,213,137.64 : 136,911,135.60 = 55,161,107.01 : x - Step 2: Convert to fraction form
99,213,137.64/136,911,135.60 = 55,161,107.01/x - Step 3: Cross multiply
99,213,137.64x = 136,911,135.60 × 55,161,107.01 - Step 4: Simplify right side
99,213,137.64x = 7,552,169,801,692,220 - Step 5: Solve for x
x = 7,552,169,801,692,220/99,213,137.64 - Step 6: Final answer
x = 76,120,662.86
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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.