Finding the Fourth Proportional to 6,658,640.84, 9,959,108.56 and 3,919,662.09
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Solution
The fourth proportional to 6,658,640.84, 9,959,108.56 and 3,919,662.09 is: 5,862,508.76
Step by Step Solution
- Step 1: Write the proportion equation
6,658,640.84 : 9,959,108.56 = 3,919,662.09 : x - Step 2: Convert to fraction form
6,658,640.84/9,959,108.56 = 3,919,662.09/x - Step 3: Cross multiply
6,658,640.84x = 9,959,108.56 × 3,919,662.09 - Step 4: Simplify right side
6,658,640.84x = 39,036,340,263,027.33 - Step 5: Solve for x
x = 39,036,340,263,027.33/6,658,640.84 - Step 6: Final answer
x = 5,862,508.76
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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.