Finding the Fourth Proportional to 538,273,207.63, 742,817,325.44 and 290,754,564.31
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Solution
The fourth proportional to 538,273,207.63, 742,817,325.44 and 290,754,564.31 is: 401,241,460.20
Step by Step Solution
- Step 1: Write the proportion equation
538,273,207.63 : 742,817,325.44 = 290,754,564.31 : x - Step 2: Convert to fraction form
538,273,207.63/742,817,325.44 = 290,754,564.31/x - Step 3: Cross multiply
538,273,207.63x = 742,817,325.44 × 290,754,564.31 - Step 4: Simplify right side
538,273,207.63x = 215,977,527,815,058,816 - Step 5: Solve for x
x = 215,977,527,815,058,816/538,273,207.63 - Step 6: Final answer
x = 401,241,460.20
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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.