Finding the Fourth Proportional to 128,733,493.56, 193,221,588.84 and 46,931,438.04
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Solution
The fourth proportional to 128,733,493.56, 193,221,588.84 and 46,931,438.04 is: 70,441,396.20
Step by Step Solution
- Step 1: Write the proportion equation
128,733,493.56 : 193,221,588.84 = 46,931,438.04 : x - Step 2: Convert to fraction form
128,733,493.56/193,221,588.84 = 46,931,438.04/x - Step 3: Cross multiply
128,733,493.56x = 193,221,588.84 × 46,931,438.04 - Step 4: Simplify right side
128,733,493.56x = 9,068,167,024,634,816 - Step 5: Solve for x
x = 9,068,167,024,634,816/128,733,493.56 - Step 6: Final answer
x = 70,441,396.20
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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.