Finding the Fourth Proportional to 7,928,682.20, 11,893,023.30 and 5,537,197.70
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Solution
The fourth proportional to 7,928,682.20, 11,893,023.30 and 5,537,197.70 is: 8,305,796.55
Step by Step Solution
- Step 1: Write the proportion equation
7,928,682.20 : 11,893,023.30 = 5,537,197.70 : x - Step 2: Convert to fraction form
7,928,682.20/11,893,023.30 = 5,537,197.70/x - Step 3: Cross multiply
7,928,682.20x = 11,893,023.30 × 5,537,197.70 - Step 4: Simplify right side
7,928,682.20x = 65,854,021,262,806.41 - Step 5: Solve for x
x = 65,854,021,262,806.41/7,928,682.20 - Step 6: Final answer
x = 8,305,796.55
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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.