Finding the Fourth Proportional to 75,718,189.38, 104,488,625.36 and 47,855,853.12
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Solution
The fourth proportional to 75,718,189.38, 104,488,625.36 and 47,855,853.12 is: 66,039,512.42
Step by Step Solution
- Step 1: Write the proportion equation
75,718,189.38 : 104,488,625.36 = 47,855,853.12 : x - Step 2: Convert to fraction form
75,718,189.38/104,488,625.36 = 47,855,853.12/x - Step 3: Cross multiply
75,718,189.38x = 104,488,625.36 × 47,855,853.12 - Step 4: Simplify right side
75,718,189.38x = 5,000,392,307,938,867 - Step 5: Solve for x
x = 5,000,392,307,938,867/75,718,189.38 - Step 6: Final answer
x = 66,039,512.42
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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.