Finding the Fourth Proportional to 7,918,875.12, 10,928,047.68 and 4,297,203.12
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Solution
The fourth proportional to 7,918,875.12, 10,928,047.68 and 4,297,203.12 is: 5,930,140.31
Step by Step Solution
- Step 1: Write the proportion equation
7,918,875.12 : 10,928,047.68 = 4,297,203.12 : x - Step 2: Convert to fraction form
7,918,875.12/10,928,047.68 = 4,297,203.12/x - Step 3: Cross multiply
7,918,875.12x = 10,928,047.68 × 4,297,203.12 - Step 4: Simplify right side
7,918,875.12x = 46,960,040,586,004.76 - Step 5: Solve for x
x = 46,960,040,586,004.76/7,918,875.12 - Step 6: Final answer
x = 5,930,140.31
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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.