Finding the Fourth Proportional to 7,859,970.36, 11,789,955.54 and 2,180,194.68
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Solution
The fourth proportional to 7,859,970.36, 11,789,955.54 and 2,180,194.68 is: 3,270,292.02
Step by Step Solution
- Step 1: Write the proportion equation
7,859,970.36 : 11,789,955.54 = 2,180,194.68 : x - Step 2: Convert to fraction form
7,859,970.36/11,789,955.54 = 2,180,194.68/x - Step 3: Cross multiply
7,859,970.36x = 11,789,955.54 × 2,180,194.68 - Step 4: Simplify right side
7,859,970.36x = 25,704,398,345,744.53 - Step 5: Solve for x
x = 25,704,398,345,744.53/7,859,970.36 - Step 6: Final answer
x = 3,270,292.02
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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.