Finding the Fourth Proportional to 115,068,660.24, 172,601,809.38 and 66,515,619.99
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Solution
The fourth proportional to 115,068,660.24, 172,601,809.38 and 66,515,619.99 is: 99,772,747.31
Step by Step Solution
- Step 1: Write the proportion equation
115,068,660.24 : 172,601,809.38 = 66,515,619.99 : x - Step 2: Convert to fraction form
115,068,660.24/172,601,809.38 = 66,515,619.99/x - Step 3: Cross multiply
115,068,660.24x = 172,601,809.38 × 66,515,619.99 - Step 4: Simplify right side
115,068,660.24x = 11,480,716,361,973,920 - Step 5: Solve for x
x = 11,480,716,361,973,920/115,068,660.24 - Step 6: Final answer
x = 99,772,747.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.