Finding the Fourth Proportional to 80,772,782.82, 121,197,009.33 and 39,809,891.58
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Solution
The fourth proportional to 80,772,782.82, 121,197,009.33 and 39,809,891.58 is: 59,733,484.88
Step by Step Solution
- Step 1: Write the proportion equation
80,772,782.82 : 121,197,009.33 = 39,809,891.58 : x - Step 2: Convert to fraction form
80,772,782.82/121,197,009.33 = 39,809,891.58/x - Step 3: Cross multiply
80,772,782.82x = 121,197,009.33 × 39,809,891.58 - Step 4: Simplify right side
80,772,782.82x = 4,824,839,801,247,548 - Step 5: Solve for x
x = 4,824,839,801,247,548/80,772,782.82 - Step 6: Final answer
x = 59,733,484.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.