Finding the Fourth Proportional to 281,069,544.78, 387,888,092.99 and 155,621,743.09
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Solution
The fourth proportional to 281,069,544.78, 387,888,092.99 and 155,621,743.09 is: 214,764,716.69
Step by Step Solution
- Step 1: Write the proportion equation
281,069,544.78 : 387,888,092.99 = 155,621,743.09 : x - Step 2: Convert to fraction form
281,069,544.78/387,888,092.99 = 155,621,743.09/x - Step 3: Cross multiply
281,069,544.78x = 387,888,092.99 × 155,621,743.09 - Step 4: Simplify right side
281,069,544.78x = 60,363,821,153,795,560 - Step 5: Solve for x
x = 60,363,821,153,795,560/281,069,544.78 - Step 6: Final answer
x = 214,764,716.69
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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.