Finding the Fourth Proportional to 7,899,471,348.74, 11,847,393,805.49 and 4,709,642,477.32
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Solution
The fourth proportional to 7,899,471,348.74, 11,847,393,805.49 and 4,709,642,477.32 is: 7,063,382,680.77
Step by Step Solution
- Step 1: Write the proportion equation
7,899,471,348.74 : 11,847,393,805.49 = 4,709,642,477.32 : x - Step 2: Convert to fraction form
7,899,471,348.74/11,847,393,805.49 = 4,709,642,477.32/x - Step 3: Cross multiply
7,899,471,348.74x = 11,847,393,805.49 × 4,709,642,477.32 - Step 4: Simplify right side
7,899,471,348.74x = 55,796,989,111,883,055,104 - Step 5: Solve for x
x = 55,796,989,111,883,055,104/7,899,471,348.74 - Step 6: Final answer
x = 7,063,382,680.77
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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.