Finding the Fourth Proportional to 71,869,679.40, 107,804,519.10 and 26,422,069.80
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Solution
The fourth proportional to 71,869,679.40, 107,804,519.10 and 26,422,069.80 is: 39,633,104.70
Step by Step Solution
- Step 1: Write the proportion equation
71,869,679.40 : 107,804,519.10 = 26,422,069.80 : x - Step 2: Convert to fraction form
71,869,679.40/107,804,519.10 = 26,422,069.80/x - Step 3: Cross multiply
71,869,679.40x = 107,804,519.10 × 26,422,069.80 - Step 4: Simplify right side
71,869,679.40x = 2,848,418,528,415,633 - Step 5: Solve for x
x = 2,848,418,528,415,633/71,869,679.40 - Step 6: Final answer
x = 39,633,104.70
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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.