Finding the Fourth Proportional to 87,163,808.94, 120,283,599.50 and 47,470,443.75
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Solution
The fourth proportional to 87,163,808.94, 120,283,599.50 and 47,470,443.75 is: 65,507,874.34
Step by Step Solution
- Step 1: Write the proportion equation
87,163,808.94 : 120,283,599.50 = 47,470,443.75 : x - Step 2: Convert to fraction form
87,163,808.94/120,283,599.50 = 47,470,443.75/x - Step 3: Cross multiply
87,163,808.94x = 120,283,599.50 × 47,470,443.75 - Step 4: Simplify right side
87,163,808.94x = 5,709,915,843,273,508 - Step 5: Solve for x
x = 5,709,915,843,273,508/87,163,808.94 - Step 6: Final answer
x = 65,507,874.34
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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.