Finding the Fourth Proportional to 61,209,717.80, 91,814,576.70 and 47,339,107.70
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Solution
The fourth proportional to 61,209,717.80, 91,814,576.70 and 47,339,107.70 is: 71,008,661.55
Step by Step Solution
- Step 1: Write the proportion equation
61,209,717.80 : 91,814,576.70 = 47,339,107.70 : x - Step 2: Convert to fraction form
61,209,717.80/91,814,576.70 = 47,339,107.70/x - Step 3: Cross multiply
61,209,717.80x = 91,814,576.70 × 47,339,107.70 - Step 4: Simplify right side
61,209,717.80x = 4,346,420,134,831,211 - Step 5: Solve for x
x = 4,346,420,134,831,211/61,209,717.80 - Step 6: Final answer
x = 71,008,661.55
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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.