Finding the Fourth Proportional to 28,211,409.20, 42,407,315.40 and 26,214,532.40
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Solution
The fourth proportional to 28,211,409.20, 42,407,315.40 and 26,214,532.40 is: 39,405,615.50
Step by Step Solution
- Step 1: Write the proportion equation
28,211,409.20 : 42,407,315.40 = 26,214,532.40 : x - Step 2: Convert to fraction form
28,211,409.20/42,407,315.40 = 26,214,532.40/x - Step 3: Cross multiply
28,211,409.20x = 42,407,315.40 × 26,214,532.40 - Step 4: Simplify right side
28,211,409.20x = 1,111,687,943,550,318.88 - Step 5: Solve for x
x = 1,111,687,943,550,318.88/28,211,409.20 - Step 6: Final answer
x = 39,405,615.50
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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.