Finding the Fourth Proportional to 71,919,354.52, 99,258,418.62 and 40,563,839.80
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Solution
The fourth proportional to 71,919,354.52, 99,258,418.62 and 40,563,839.80 is: 55,983,575.19
Step by Step Solution
- Step 1: Write the proportion equation
71,919,354.52 : 99,258,418.62 = 40,563,839.80 : x - Step 2: Convert to fraction form
71,919,354.52/99,258,418.62 = 40,563,839.80/x - Step 3: Cross multiply
71,919,354.52x = 99,258,418.62 × 40,563,839.80 - Step 4: Simplify right side
71,919,354.52x = 4,026,302,591,703,017 - Step 5: Solve for x
x = 4,026,302,591,703,017/71,919,354.52 - Step 6: Final answer
x = 55,983,575.19
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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.