Finding the Fourth Proportional to 7,193,457.11, 9,926,854.98 and 3,930,201.74
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Solution
The fourth proportional to 7,193,457.11, 9,926,854.98 and 3,930,201.74 is: 5,423,615.12
Step by Step Solution
- Step 1: Write the proportion equation
7,193,457.11 : 9,926,854.98 = 3,930,201.74 : x - Step 2: Convert to fraction form
7,193,457.11/9,926,854.98 = 3,930,201.74/x - Step 3: Cross multiply
7,193,457.11x = 9,926,854.98 × 3,930,201.74 - Step 4: Simplify right side
7,193,457.11x = 39,014,542,715,123.67 - Step 5: Solve for x
x = 39,014,542,715,123.67/7,193,457.11 - Step 6: Final answer
x = 5,423,615.12
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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.