Finding the Fourth Proportional to 28,859,035.97, 39,806,309.44 and 18,558,790.85
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Solution
The fourth proportional to 28,859,035.97, 39,806,309.44 and 18,558,790.85 is: 25,598,809.75
Step by Step Solution
- Step 1: Write the proportion equation
28,859,035.97 : 39,806,309.44 = 18,558,790.85 : x - Step 2: Convert to fraction form
28,859,035.97/39,806,309.44 = 18,558,790.85/x - Step 3: Cross multiply
28,859,035.97x = 39,806,309.44 × 18,558,790.85 - Step 4: Simplify right side
28,859,035.97x = 738,756,971,407,340.62 - Step 5: Solve for x
x = 738,756,971,407,340.62/28,859,035.97 - Step 6: Final answer
x = 25,598,809.75
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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.