Finding the Fourth Proportional to 28,393,735.12, 39,137,449.26 and 22,187,996.26
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Solution
The fourth proportional to 28,393,735.12, 39,137,449.26 and 22,187,996.26 is: 30,583,562.68
Step by Step Solution
- Step 1: Write the proportion equation
28,393,735.12 : 39,137,449.26 = 22,187,996.26 : x - Step 2: Convert to fraction form
28,393,735.12/39,137,449.26 = 22,187,996.26/x - Step 3: Cross multiply
28,393,735.12x = 39,137,449.26 × 22,187,996.26 - Step 4: Simplify right side
28,393,735.12x = 868,381,577,806,819.75 - Step 5: Solve for x
x = 868,381,577,806,819.75/28,393,735.12 - Step 6: Final answer
x = 30,583,562.68
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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.