Finding the Fourth Proportional to 2,129,934,198.93, 2,939,422,736.57 and 1,190,159,653.65
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Solution
The fourth proportional to 2,129,934,198.93, 2,939,422,736.57 and 1,190,159,653.65 is: 1,642,483,766.79
Step by Step Solution
- Step 1: Write the proportion equation
2,129,934,198.93 : 2,939,422,736.57 = 1,190,159,653.65 : x - Step 2: Convert to fraction form
2,129,934,198.93/2,939,422,736.57 = 1,190,159,653.65/x - Step 3: Cross multiply
2,129,934,198.93x = 2,939,422,736.57 × 1,190,159,653.65 - Step 4: Simplify right side
2,129,934,198.93x = 3,498,382,346,081,136,128 - Step 5: Solve for x
x = 3,498,382,346,081,136,128/2,129,934,198.93 - Step 6: Final answer
x = 1,642,483,766.79
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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.