Finding the Fourth Proportional to 10,516,201.80, 15,768,081.90 and 5,477,353.80
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Solution
The fourth proportional to 10,516,201.80, 15,768,081.90 and 5,477,353.80 is: 8,212,790.60
Step by Step Solution
- Step 1: Write the proportion equation
10,516,201.80 : 15,768,081.90 = 5,477,353.80 : x - Step 2: Convert to fraction form
10,516,201.80/15,768,081.90 = 5,477,353.80/x - Step 3: Cross multiply
10,516,201.80x = 15,768,081.90 × 5,477,353.80 - Step 4: Simplify right side
10,516,201.80x = 86,367,363,313,676.22 - Step 5: Solve for x
x = 86,367,363,313,676.22/10,516,201.80 - Step 6: Final answer
x = 8,212,790.60
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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.