Finding the Fourth Proportional to 815,790,045.24, 1,224,046,783.08 and 427,520,562.84
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Solution
The fourth proportional to 815,790,045.24, 1,224,046,783.08 and 427,520,562.84 is: 641,470,403.69
Step by Step Solution
- Step 1: Write the proportion equation
815,790,045.24 : 1,224,046,783.08 = 427,520,562.84 : x - Step 2: Convert to fraction form
815,790,045.24/1,224,046,783.08 = 427,520,562.84/x - Step 3: Cross multiply
815,790,045.24x = 1,224,046,783.08 × 427,520,562.84 - Step 4: Simplify right side
815,790,045.24x = 523,305,169,644,852,928 - Step 5: Solve for x
x = 523,305,169,644,852,928/815,790,045.24 - Step 6: Final answer
x = 641,470,403.69
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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.