Finding the Fourth Proportional to 136,340,135.76, 188,154,030.24 and 80,633,309.12
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Solution
The fourth proportional to 136,340,135.76, 188,154,030.24 and 80,633,309.12 is: 111,276,712.45
Step by Step Solution
- Step 1: Write the proportion equation
136,340,135.76 : 188,154,030.24 = 80,633,309.12 : x - Step 2: Convert to fraction form
136,340,135.76/188,154,030.24 = 80,633,309.12/x - Step 3: Cross multiply
136,340,135.76x = 188,154,030.24 × 80,633,309.12 - Step 4: Simplify right side
136,340,135.76x = 15,171,482,082,515,750 - Step 5: Solve for x
x = 15,171,482,082,515,750/136,340,135.76 - Step 6: Final answer
x = 111,276,712.45
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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.