Finding the Fourth Proportional to 155,321,460.56, 214,348,163.67 and 84,761,617.38
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Solution
The fourth proportional to 155,321,460.56, 214,348,163.67 and 84,761,617.38 is: 116,973,513.96
Step by Step Solution
- Step 1: Write the proportion equation
155,321,460.56 : 214,348,163.67 = 84,761,617.38 : x - Step 2: Convert to fraction form
155,321,460.56/214,348,163.67 = 84,761,617.38/x - Step 3: Cross multiply
155,321,460.56x = 214,348,163.67 × 84,761,617.38 - Step 4: Simplify right side
155,321,460.56x = 18,168,497,035,102,156 - Step 5: Solve for x
x = 18,168,497,035,102,156/155,321,460.56 - Step 6: Final answer
x = 116,973,513.96
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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.