Finding the Fourth Proportional to 815,761,883.66, 1,125,751,561.44 and 444,483,915.02
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Solution
The fourth proportional to 815,761,883.66, 1,125,751,561.44 and 444,483,915.02 is: 613,387,890.99
Step by Step Solution
- Step 1: Write the proportion equation
815,761,883.66 : 1,125,751,561.44 = 444,483,915.02 : x - Step 2: Convert to fraction form
815,761,883.66/1,125,751,561.44 = 444,483,915.02/x - Step 3: Cross multiply
815,761,883.66x = 1,125,751,561.44 × 444,483,915.02 - Step 4: Simplify right side
815,761,883.66x = 500,378,461,368,729,280 - Step 5: Solve for x
x = 500,378,461,368,729,280/815,761,883.66 - Step 6: Final answer
x = 613,387,890.99
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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.