Finding the Fourth Proportional to 6,418,639,318.20, 9,628,618,669.92 and 2,221,585,266.24
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Solution
The fourth proportional to 6,418,639,318.20, 9,628,618,669.92 and 2,221,585,266.24 is: 3,332,606,228.66
Step by Step Solution
- Step 1: Write the proportion equation
6,418,639,318.20 : 9,628,618,669.92 = 2,221,585,266.24 : x - Step 2: Convert to fraction form
6,418,639,318.20/9,628,618,669.92 = 2,221,585,266.24/x - Step 3: Cross multiply
6,418,639,318.20x = 9,628,618,669.92 × 2,221,585,266.24 - Step 4: Simplify right side
6,418,639,318.20x = 21,390,797,371,337,654,272 - Step 5: Solve for x
x = 21,390,797,371,337,654,272/6,418,639,318.20 - Step 6: Final answer
x = 3,332,606,228.66
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1.5x scale
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.