Finding the Fourth Proportional to 219,862,807.70, 329,794,211.55 and 76,255,639.70
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Solution
The fourth proportional to 219,862,807.70, 329,794,211.55 and 76,255,639.70 is: 114,383,459.55
Step by Step Solution
- Step 1: Write the proportion equation
219,862,807.70 : 329,794,211.55 = 76,255,639.70 : x - Step 2: Convert to fraction form
219,862,807.70/329,794,211.55 = 76,255,639.70/x - Step 3: Cross multiply
219,862,807.70x = 329,794,211.55 × 76,255,639.70 - Step 4: Simplify right side
219,862,807.70x = 25,148,668,571,102,380 - Step 5: Solve for x
x = 25,148,668,571,102,380/219,862,807.70 - Step 6: Final answer
x = 114,383,459.55
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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.