Finding the Fourth Proportional to 7,859,965.74, 11,789,948.61 and 2,180,190.05
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Solution
The fourth proportional to 7,859,965.74, 11,789,948.61 and 2,180,190.05 is: 3,270,285.07
Step by Step Solution
- Step 1: Write the proportion equation
7,859,965.74 : 11,789,948.61 = 2,180,190.05 : x - Step 2: Convert to fraction form
7,859,965.74/11,789,948.61 = 2,180,190.05/x - Step 3: Cross multiply
7,859,965.74x = 11,789,948.61 × 2,180,190.05 - Step 4: Simplify right side
7,859,965.74x = 25,704,328,590,583.59 - Step 5: Solve for x
x = 25,704,328,590,583.59/7,859,965.74 - Step 6: Final answer
x = 3,270,285.07
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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.