Finding the Fourth Proportional to 128,961,909.53, 193,263,896.64 and 58,760,575.55
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Solution
The fourth proportional to 128,961,909.53, 193,263,896.64 and 58,760,575.55 is: 88,059,317.99
Step by Step Solution
- Step 1: Write the proportion equation
128,961,909.53 : 193,263,896.64 = 58,760,575.55 : x - Step 2: Convert to fraction form
128,961,909.53/193,263,896.64 = 58,760,575.55/x - Step 3: Cross multiply
128,961,909.53x = 193,263,896.64 × 58,760,575.55 - Step 4: Simplify right side
128,961,909.53x = 11,356,297,799,602,110 - Step 5: Solve for x
x = 11,356,297,799,602,110/128,961,909.53 - Step 6: Final answer
x = 88,059,317.99
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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.