Finding the Fourth Proportional to 491,245,525.98, 677,838,806.73 and 290,274,435
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Solution
The fourth proportional to 491,245,525.98, 677,838,806.73 and 290,274,435 is: 400,531,437.42
Step by Step Solution
- Step 1: Write the proportion equation
491,245,525.98 : 677,838,806.73 = 290,274,435 : x - Step 2: Convert to fraction form
491,245,525.98/677,838,806.73 = 290,274,435/x - Step 3: Cross multiply
491,245,525.98x = 677,838,806.73 × 290,274,435 - Step 4: Simplify right side
491,245,525.98x = 196,759,276,644,624,960 - Step 5: Solve for x
x = 196,759,276,644,624,960/491,245,525.98 - Step 6: Final answer
x = 400,531,437.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.