Finding the Fourth Proportional to 20,776,690.42, 31,163,557.58 and 6,398,258.92
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Solution
The fourth proportional to 20,776,690.42, 31,163,557.58 and 6,398,258.92 is: 9,596,933.21
Step by Step Solution
- Step 1: Write the proportion equation
20,776,690.42 : 31,163,557.58 = 6,398,258.92 : x - Step 2: Convert to fraction form
20,776,690.42/31,163,557.58 = 6,398,258.92/x - Step 3: Cross multiply
20,776,690.42x = 31,163,557.58 × 6,398,258.92 - Step 4: Simplify right side
20,776,690.42x = 199,392,510,179,261.91 - Step 5: Solve for x
x = 199,392,510,179,261.91/20,776,690.42 - Step 6: Final answer
x = 9,596,933.21
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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.