Finding the Fourth Proportional to 154,273,604.76, 212,903,712.72 and 84,661,476.84
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Solution
The fourth proportional to 154,273,604.76, 212,903,712.72 and 84,661,476.84 is: 116,836,206.50
Step by Step Solution
- Step 1: Write the proportion equation
154,273,604.76 : 212,903,712.72 = 84,661,476.84 : x - Step 2: Convert to fraction form
154,273,604.76/212,903,712.72 = 84,661,476.84/x - Step 3: Cross multiply
154,273,604.76x = 212,903,712.72 × 84,661,476.84 - Step 4: Simplify right side
154,273,604.76x = 18,024,742,743,594,296 - Step 5: Solve for x
x = 18,024,742,743,594,296/154,273,604.76 - Step 6: Final answer
x = 116,836,206.50
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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.