Finding the Fourth Proportional to 7,410,765.19, 10,226,854.45 and 4,147,579.75
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Solution
The fourth proportional to 7,410,765.19, 10,226,854.45 and 4,147,579.75 is: 5,723,659.21
Step by Step Solution
- Step 1: Write the proportion equation
7,410,765.19 : 10,226,854.45 = 4,147,579.75 : x - Step 2: Convert to fraction form
7,410,765.19/10,226,854.45 = 4,147,579.75/x - Step 3: Cross multiply
7,410,765.19x = 10,226,854.45 × 4,147,579.75 - Step 4: Simplify right side
7,410,765.19x = 42,416,694,423,017.38 - Step 5: Solve for x
x = 42,416,694,423,017.38/7,410,765.19 - Step 6: Final answer
x = 5,723,659.21
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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.