Finding the Fourth Proportional to 6,990,929.12, 10,490,469.68 and 2,947,169.44
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Solution
The fourth proportional to 6,990,929.12, 10,490,469.68 and 2,947,169.44 is: 4,422,472.48
Step by Step Solution
- Step 1: Write the proportion equation
6,990,929.12 : 10,490,469.68 = 2,947,169.44 : x - Step 2: Convert to fraction form
6,990,929.12/10,490,469.68 = 2,947,169.44/x - Step 3: Cross multiply
6,990,929.12x = 10,490,469.68 × 2,947,169.44 - Step 4: Simplify right side
6,990,929.12x = 30,917,191,652,142.58 - Step 5: Solve for x
x = 30,917,191,652,142.58/6,990,929.12 - Step 6: Final answer
x = 4,422,472.48
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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.