Finding the Fourth Proportional to 7,828,805.70, 11,740,391.19 and 2,709,844.74
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Solution
The fourth proportional to 7,828,805.70, 11,740,391.19 and 2,709,844.74 is: 4,063,791.92
Step by Step Solution
- Step 1: Write the proportion equation
7,828,805.70 : 11,740,391.19 = 2,709,844.74 : x - Step 2: Convert to fraction form
7,828,805.70/11,740,391.19 = 2,709,844.74/x - Step 3: Cross multiply
7,828,805.70x = 11,740,391.19 × 2,709,844.74 - Step 4: Simplify right side
7,828,805.70x = 31,814,637,311,763.84 - Step 5: Solve for x
x = 31,814,637,311,763.84/7,828,805.70 - Step 6: Final answer
x = 4,063,791.92
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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.