Finding the Fourth Proportional to 9,216,147,448.92, 12,718,305,587.46 and 4,987,104,717.63
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Solution
The fourth proportional to 9,216,147,448.92, 12,718,305,587.46 and 4,987,104,717.63 is: 6,882,216,473.53
Step by Step Solution
- Step 1: Write the proportion equation
9,216,147,448.92 : 12,718,305,587.46 = 4,987,104,717.63 : x - Step 2: Convert to fraction form
9,216,147,448.92/12,718,305,587.46 = 4,987,104,717.63/x - Step 3: Cross multiply
9,216,147,448.92x = 12,718,305,587.46 × 4,987,104,717.63 - Step 4: Simplify right side
9,216,147,448.92x = 63,427,521,795,481,747,456 - Step 5: Solve for x
x = 63,427,521,795,481,747,456/9,216,147,448.92 - Step 6: Final answer
x = 6,882,216,473.53
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Double scale
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1.5x scale
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.