Finding the Fourth Proportional to 538,120,551.30, 742,606,353.99 and 290,601,883.68
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Solution
The fourth proportional to 538,120,551.30, 742,606,353.99 and 290,601,883.68 is: 401,030,595.80
Step by Step Solution
- Step 1: Write the proportion equation
538,120,551.30 : 742,606,353.99 = 290,601,883.68 : x - Step 2: Convert to fraction form
538,120,551.30/742,606,353.99 = 290,601,883.68/x - Step 3: Cross multiply
538,120,551.30x = 742,606,353.99 × 290,601,883.68 - Step 4: Simplify right side
538,120,551.30x = 215,802,805,302,230,880 - Step 5: Solve for x
x = 215,802,805,302,230,880/538,120,551.30 - Step 6: Final answer
x = 401,030,595.80
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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.