Finding the Fourth Proportional to 6,930,694.24, 9,564,716.80 and 3,990,948
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Solution
The fourth proportional to 6,930,694.24, 9,564,716.80 and 3,990,948 is: 5,507,714.82
Step by Step Solution
- Step 1: Write the proportion equation
6,930,694.24 : 9,564,716.80 = 3,990,948 : x - Step 2: Convert to fraction form
6,930,694.24/9,564,716.80 = 3,990,948/x - Step 3: Cross multiply
6,930,694.24x = 9,564,716.80 × 3,990,948 - Step 4: Simplify right side
6,930,694.24x = 38,172,287,383,526.41 - Step 5: Solve for x
x = 38,172,287,383,526.41/6,930,694.24 - Step 6: Final answer
x = 5,507,714.82
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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.