Finding the Fourth Proportional to 75,653,517.54, 104,408,287.29 and 42,620,253.06
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Solution
The fourth proportional to 75,653,517.54, 104,408,287.29 and 42,620,253.06 is: 58,819,573.37
Step by Step Solution
- Step 1: Write the proportion equation
75,653,517.54 : 104,408,287.29 = 42,620,253.06 : x - Step 2: Convert to fraction form
75,653,517.54/104,408,287.29 = 42,620,253.06/x - Step 3: Cross multiply
75,653,517.54x = 104,408,287.29 × 42,620,253.06 - Step 4: Simplify right side
75,653,517.54x = 4,449,907,625,860,982 - Step 5: Solve for x
x = 4,449,907,625,860,982/75,653,517.54 - Step 6: Final answer
x = 58,819,573.37
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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.