Finding the Fourth Proportional to 31,858,520.97, 47,768,560.75 and 12,163,933.82
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Solution
The fourth proportional to 31,858,520.97, 47,768,560.75 and 12,163,933.82 is: 18,238,562.06
Step by Step Solution
- Step 1: Write the proportion equation
31,858,520.97 : 47,768,560.75 = 12,163,933.82 : x - Step 2: Convert to fraction form
31,858,520.97/47,768,560.75 = 12,163,933.82/x - Step 3: Cross multiply
31,858,520.97x = 47,768,560.75 × 12,163,933.82 - Step 4: Simplify right side
31,858,520.97x = 581,053,611,774,275.88 - Step 5: Solve for x
x = 581,053,611,774,275.88/31,858,520.97 - Step 6: Final answer
x = 18,238,562.06
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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.