Finding the Fourth Proportional to 7,918,873.63, 10,928,045.61 and 4,297,201.63
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Solution
The fourth proportional to 7,918,873.63, 10,928,045.61 and 4,297,201.63 is: 5,930,138.25
Step by Step Solution
- Step 1: Write the proportion equation
7,918,873.63 : 10,928,045.61 = 4,297,201.63 : x - Step 2: Convert to fraction form
7,918,873.63/10,928,045.61 = 4,297,201.63/x - Step 3: Cross multiply
7,918,873.63x = 10,928,045.61 × 4,297,201.63 - Step 4: Simplify right side
7,918,873.63x = 46,960,015,380,686.23 - Step 5: Solve for x
x = 46,960,015,380,686.23/7,918,873.63 - Step 6: Final answer
x = 5,930,138.25
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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.