Finding the Fourth Proportional to 10,645,532.56, 15,980,235.48 and 4,260,235.60
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Solution
The fourth proportional to 10,645,532.56, 15,980,235.48 and 4,260,235.60 is: 6,395,130.32
Step by Step Solution
- Step 1: Write the proportion equation
10,645,532.56 : 15,980,235.48 = 4,260,235.60 : x - Step 2: Convert to fraction form
10,645,532.56/15,980,235.48 = 4,260,235.60/x - Step 3: Cross multiply
10,645,532.56x = 15,980,235.48 × 4,260,235.60 - Step 4: Simplify right side
10,645,532.56x = 68,079,568,088,279.09 - Step 5: Solve for x
x = 68,079,568,088,279.09/10,645,532.56 - Step 6: Final answer
x = 6,395,130.32
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1.5x scale
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.