Finding the Fourth Proportional to 129,129,326.56, 193,694,197.56 and 39,289,477
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Solution
The fourth proportional to 129,129,326.56, 193,694,197.56 and 39,289,477 is: 58,934,278.70
Step by Step Solution
- Step 1: Write the proportion equation
129,129,326.56 : 193,694,197.56 = 39,289,477 : x - Step 2: Convert to fraction form
129,129,326.56/193,694,197.56 = 39,289,477/x - Step 3: Cross multiply
129,129,326.56x = 193,694,197.56 × 39,289,477 - Step 4: Simplify right side
129,129,326.56x = 7,610,143,720,067,076 - Step 5: Solve for x
x = 7,610,143,720,067,076/129,129,326.56 - Step 6: Final answer
x = 58,934,278.70
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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.