Finding the Fourth Proportional to 75,174,589.68, 103,743,785.44 and 42,135,449.44
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Solution
The fourth proportional to 75,174,589.68, 103,743,785.44 and 42,135,449.44 is: 58,148,518.60
Step by Step Solution
- Step 1: Write the proportion equation
75,174,589.68 : 103,743,785.44 = 42,135,449.44 : x - Step 2: Convert to fraction form
75,174,589.68/103,743,785.44 = 42,135,449.44/x - Step 3: Cross multiply
75,174,589.68x = 103,743,785.44 × 42,135,449.44 - Step 4: Simplify right side
75,174,589.68x = 4,371,291,026,121,328 - Step 5: Solve for x
x = 4,371,291,026,121,328/75,174,589.68 - Step 6: Final answer
x = 58,148,518.60
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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.