Finding the Fourth Proportional to 1,129,504,664.26, 1,558,232,929.78 and 705,382,012.05
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Solution
The fourth proportional to 1,129,504,664.26, 1,558,232,929.78 and 705,382,012.05 is: 973,125,223.85
Step by Step Solution
- Step 1: Write the proportion equation
1,129,504,664.26 : 1,558,232,929.78 = 705,382,012.05 : x - Step 2: Convert to fraction form
1,129,504,664.26/1,558,232,929.78 = 705,382,012.05/x - Step 3: Cross multiply
1,129,504,664.26x = 1,558,232,929.78 × 705,382,012.05 - Step 4: Simplify right side
1,129,504,664.26x = 1,099,149,479,250,782,720 - Step 5: Solve for x
x = 1,099,149,479,250,782,720/1,129,504,664.26 - Step 6: Final answer
x = 973,125,223.85
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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.