Finding the Fourth Proportional to 919,122,154.92, 1,378,901,123.19 and 264,057,349.50
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Solution
The fourth proportional to 919,122,154.92, 1,378,901,123.19 and 264,057,349.50 is: 396,148,622.75
Step by Step Solution
- Step 1: Write the proportion equation
919,122,154.92 : 1,378,901,123.19 = 264,057,349.50 : x - Step 2: Convert to fraction form
919,122,154.92/1,378,901,123.19 = 264,057,349.50/x - Step 3: Cross multiply
919,122,154.92x = 1,378,901,123.19 × 264,057,349.50 - Step 4: Simplify right side
919,122,154.92x = 364,108,975,812,124,416 - Step 5: Solve for x
x = 364,108,975,812,124,416/919,122,154.92 - Step 6: Final answer
x = 396,148,622.75
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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.