Finding the Fourth Proportional to 685,124,164.08, 945,472,383.36 and 371,858,491.44
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Solution
The fourth proportional to 685,124,164.08, 945,472,383.36 and 371,858,491.44 is: 513,165,280.99
Step by Step Solution
- Step 1: Write the proportion equation
685,124,164.08 : 945,472,383.36 = 371,858,491.44 : x - Step 2: Convert to fraction form
685,124,164.08/945,472,383.36 = 371,858,491.44/x - Step 3: Cross multiply
685,124,164.08x = 945,472,383.36 × 371,858,491.44 - Step 4: Simplify right side
685,124,164.08x = 351,581,934,174,430,976 - Step 5: Solve for x
x = 351,581,934,174,430,976/685,124,164.08 - Step 6: Final answer
x = 513,165,280.99
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1.5x scale
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.