Finding the Fourth Proportional to 538,273,236.75, 742,817,365.61 and 290,754,593.43
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Solution
The fourth proportional to 538,273,236.75, 742,817,365.61 and 290,754,593.43 is: 401,241,500.38
Step by Step Solution
- Step 1: Write the proportion equation
538,273,236.75 : 742,817,365.61 = 290,754,593.43 : x - Step 2: Convert to fraction form
538,273,236.75/742,817,365.61 = 290,754,593.43/x - Step 3: Cross multiply
538,273,236.75x = 742,817,365.61 × 290,754,593.43 - Step 4: Simplify right side
538,273,236.75x = 215,977,561,129,225,440 - Step 5: Solve for x
x = 215,977,561,129,225,440/538,273,236.75 - Step 6: Final answer
x = 401,241,500.38
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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.