Finding the Fourth Proportional to 83,466,847.79, 115,183,880.97 and 47,702,691.90
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Solution
The fourth proportional to 83,466,847.79, 115,183,880.97 and 47,702,691.90 is: 65,829,503.95
Step by Step Solution
- Step 1: Write the proportion equation
83,466,847.79 : 115,183,880.97 = 47,702,691.90 : x - Step 2: Convert to fraction form
83,466,847.79/115,183,880.97 = 47,702,691.90/x - Step 3: Cross multiply
83,466,847.79x = 115,183,880.97 × 47,702,691.90 - Step 4: Simplify right side
83,466,847.79x = 5,494,581,185,950,416 - Step 5: Solve for x
x = 5,494,581,185,950,416/83,466,847.79 - Step 6: Final answer
x = 65,829,503.95
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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.