Finding the Fourth Proportional to 87,171,782.74, 120,305,563.05 and 65,106,992.34
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Solution
The fourth proportional to 87,171,782.74, 120,305,563.05 and 65,106,992.34 is: 89,854,000.06
Step by Step Solution
- Step 1: Write the proportion equation
87,171,782.74 : 120,305,563.05 = 65,106,992.34 : x - Step 2: Convert to fraction form
87,171,782.74/120,305,563.05 = 65,106,992.34/x - Step 3: Cross multiply
87,171,782.74x = 120,305,563.05 × 65,106,992.34 - Step 4: Simplify right side
87,171,782.74x = 7,832,733,371,955,737 - Step 5: Solve for x
x = 7,832,733,371,955,737/87,171,782.74 - Step 6: Final answer
x = 89,854,000.06
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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.