Finding the Fourth Proportional to 101,071,466.21, 139,478,716.37 and 54,661,720.13
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Solution
The fourth proportional to 101,071,466.21, 139,478,716.37 and 54,661,720.13 is: 75,433,224.07
Step by Step Solution
- Step 1: Write the proportion equation
101,071,466.21 : 139,478,716.37 = 54,661,720.13 : x - Step 2: Convert to fraction form
101,071,466.21/139,478,716.37 = 54,661,720.13/x - Step 3: Cross multiply
101,071,466.21x = 139,478,716.37 × 54,661,720.13 - Step 4: Simplify right side
101,071,466.21x = 7,624,146,557,337,888 - Step 5: Solve for x
x = 7,624,146,557,337,888/101,071,466.21 - Step 6: Final answer
x = 75,433,224.07
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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.