Finding the Fourth Proportional to 87,164,726.99, 120,295,819.66 and 65,099,919.46
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Solution
The fourth proportional to 87,164,726.99, 120,295,819.66 and 65,099,919.46 is: 89,844,234.49
Step by Step Solution
- Step 1: Write the proportion equation
87,164,726.99 : 120,295,819.66 = 65,099,919.46 : x - Step 2: Convert to fraction form
87,164,726.99/120,295,819.66 = 65,099,919.46/x - Step 3: Cross multiply
87,164,726.99x = 120,295,819.66 × 65,099,919.46 - Step 4: Simplify right side
87,164,726.99x = 7,831,248,170,639,205 - Step 5: Solve for x
x = 7,831,248,170,639,205/87,164,726.99 - Step 6: Final answer
x = 89,844,234.49
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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.