Finding the Fourth Proportional to 149,449,368.24, 206,235,448.92 and 87,610,892.40
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Solution
The fourth proportional to 149,449,368.24, 206,235,448.92 and 87,610,892.40 is: 120,900,288.42
Step by Step Solution
- Step 1: Write the proportion equation
149,449,368.24 : 206,235,448.92 = 87,610,892.40 : x - Step 2: Convert to fraction form
149,449,368.24/206,235,448.92 = 87,610,892.40/x - Step 3: Cross multiply
149,449,368.24x = 206,235,448.92 × 87,610,892.40 - Step 4: Simplify right side
149,449,368.24x = 18,068,471,724,395,816 - Step 5: Solve for x
x = 18,068,471,724,395,816/149,449,368.24 - Step 6: Final answer
x = 120,900,288.42
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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.