Finding the Fourth Proportional to 944,784,902.70, 1,417,177,354.05 and 715,202,390.70
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Solution
The fourth proportional to 944,784,902.70, 1,417,177,354.05 and 715,202,390.70 is: 1,072,803,586.05
Step by Step Solution
- Step 1: Write the proportion equation
944,784,902.70 : 1,417,177,354.05 = 715,202,390.70 : x - Step 2: Convert to fraction form
944,784,902.70/1,417,177,354.05 = 715,202,390.70/x - Step 3: Cross multiply
944,784,902.70x = 1,417,177,354.05 × 715,202,390.70 - Step 4: Simplify right side
944,784,902.70x = 1,013,568,631,662,460,416 - Step 5: Solve for x
x = 1,013,568,631,662,460,416/944,784,902.70 - Step 6: Final answer
x = 1,072,803,586.05
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1.5x scale
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.