Finding the Fourth Proportional to 87,261,428.34, 120,421,601.58 and 48,104,609.46
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Solution
The fourth proportional to 87,261,428.34, 120,421,601.58 and 48,104,609.46 is: 66,384,818.87
Step by Step Solution
- Step 1: Write the proportion equation
87,261,428.34 : 120,421,601.58 = 48,104,609.46 : x - Step 2: Convert to fraction form
87,261,428.34/120,421,601.58 = 48,104,609.46/x - Step 3: Cross multiply
87,261,428.34x = 120,421,601.58 × 48,104,609.46 - Step 4: Simplify right side
87,261,428.34x = 5,792,834,114,553,619 - Step 5: Solve for x
x = 5,792,834,114,553,619/87,261,428.34 - Step 6: Final answer
x = 66,384,818.87
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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.