Finding the Fourth Proportional to 538,273,291.26, 742,817,440.82 and 290,754,647.94
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Solution
The fourth proportional to 538,273,291.26, 742,817,440.82 and 290,754,647.94 is: 401,241,575.60
Step by Step Solution
- Step 1: Write the proportion equation
538,273,291.26 : 742,817,440.82 = 290,754,647.94 : x - Step 2: Convert to fraction form
538,273,291.26/742,817,440.82 = 290,754,647.94/x - Step 3: Cross multiply
538,273,291.26x = 742,817,440.82 × 290,754,647.94 - Step 4: Simplify right side
538,273,291.26x = 215,977,623,489,310,912 - Step 5: Solve for x
x = 215,977,623,489,310,912/538,273,291.26 - Step 6: Final answer
x = 401,241,575.60
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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.