Finding the Fourth Proportional to 7,837,792.19, 10,815,556.09 and 4,399,368.92
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Solution
The fourth proportional to 7,837,792.19, 10,815,556.09 and 4,399,368.92 is: 6,070,793.94
Step by Step Solution
- Step 1: Write the proportion equation
7,837,792.19 : 10,815,556.09 = 4,399,368.92 : x - Step 2: Convert to fraction form
7,837,792.19/10,815,556.09 = 4,399,368.92/x - Step 3: Cross multiply
7,837,792.19x = 10,815,556.09 × 4,399,368.92 - Step 4: Simplify right side
7,837,792.19x = 47,581,621,314,862.72 - Step 5: Solve for x
x = 47,581,621,314,862.72/7,837,792.19 - Step 6: Final answer
x = 6,070,793.94
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Double scale
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1.5x scale
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.