Finding the Fourth Proportional to 19,982,959.20, 29,974,438.80 and 4,836,890.70
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Solution
The fourth proportional to 19,982,959.20, 29,974,438.80 and 4,836,890.70 is: 7,255,336.05
Step by Step Solution
- Step 1: Write the proportion equation
19,982,959.20 : 29,974,438.80 = 4,836,890.70 : x - Step 2: Convert to fraction form
19,982,959.20/29,974,438.80 = 4,836,890.70/x - Step 3: Cross multiply
19,982,959.20x = 29,974,438.80 × 4,836,890.70 - Step 4: Simplify right side
19,982,959.20x = 144,983,084,269,439.16 - Step 5: Solve for x
x = 144,983,084,269,439.16/19,982,959.20 - Step 6: Final answer
x = 7,255,336.05
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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.