Finding the Fourth Proportional to 7,658,405.40, 10,568,599.50 and 4,220,646.48
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Solution
The fourth proportional to 7,658,405.40, 10,568,599.50 and 4,220,646.48 is: 5,824,492.17
Step by Step Solution
- Step 1: Write the proportion equation
7,658,405.40 : 10,568,599.50 = 4,220,646.48 : x - Step 2: Convert to fraction form
7,658,405.40/10,568,599.50 = 4,220,646.48/x - Step 3: Cross multiply
7,658,405.40x = 10,568,599.50 × 4,220,646.48 - Step 4: Simplify right side
7,658,405.40x = 44,606,322,278,204.77 - Step 5: Solve for x
x = 44,606,322,278,204.77/7,658,405.40 - Step 6: Final answer
x = 5,824,492.17
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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.