Finding the Fourth Proportional to 131,322,317.76, 181,228,652.56 and 71,786,903.76
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Solution
The fourth proportional to 131,322,317.76, 181,228,652.56 and 71,786,903.76 is: 99,068,033.99
Step by Step Solution
- Step 1: Write the proportion equation
131,322,317.76 : 181,228,652.56 = 71,786,903.76 : x - Step 2: Convert to fraction form
131,322,317.76/181,228,652.56 = 71,786,903.76/x - Step 3: Cross multiply
131,322,317.76x = 181,228,652.56 × 71,786,903.76 - Step 4: Simplify right side
131,322,317.76x = 13,009,843,839,879,198 - Step 5: Solve for x
x = 13,009,843,839,879,198/131,322,317.76 - Step 6: Final answer
x = 99,068,033.99
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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.