Finding the Fourth Proportional to 7,147,918.70, 10,721,878.05 and 4,306,568.30
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Solution
The fourth proportional to 7,147,918.70, 10,721,878.05 and 4,306,568.30 is: 6,459,852.45
Step by Step Solution
- Step 1: Write the proportion equation
7,147,918.70 : 10,721,878.05 = 4,306,568.30 : x - Step 2: Convert to fraction form
7,147,918.70/10,721,878.05 = 4,306,568.30/x - Step 3: Cross multiply
7,147,918.70x = 10,721,878.05 × 4,306,568.30 - Step 4: Simplify right side
7,147,918.70x = 46,174,500,126,595.81 - Step 5: Solve for x
x = 46,174,500,126,595.81/7,147,918.70 - Step 6: Final answer
x = 6,459,852.45
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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.