Finding the Fourth Proportional to 6,985,665.64, 9,640,202.34 and 3,929,879.08
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Solution
The fourth proportional to 6,985,665.64, 9,640,202.34 and 3,929,879.08 is: 5,423,223.99
Step by Step Solution
- Step 1: Write the proportion equation
6,985,665.64 : 9,640,202.34 = 3,929,879.08 : x - Step 2: Convert to fraction form
6,985,665.64/9,640,202.34 = 3,929,879.08/x - Step 3: Cross multiply
6,985,665.64x = 9,640,202.34 × 3,929,879.08 - Step 4: Simplify right side
6,985,665.64x = 37,884,829,502,933.05 - Step 5: Solve for x
x = 37,884,829,502,933.05/6,985,665.64 - Step 6: Final answer
x = 5,423,223.99
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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.