Finding the Fourth Proportional to 81,418,276.80, 122,326,480.80 and 61,262,884.80
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Solution
The fourth proportional to 81,418,276.80, 122,326,480.80 and 61,262,884.80 is: 92,044,113.38
Step by Step Solution
- Step 1: Write the proportion equation
81,418,276.80 : 122,326,480.80 = 61,262,884.80 : x - Step 2: Convert to fraction form
81,418,276.80/122,326,480.80 = 61,262,884.80/x - Step 3: Cross multiply
81,418,276.80x = 122,326,480.80 × 61,262,884.80 - Step 4: Simplify right side
81,418,276.80x = 7,494,073,101,239,811 - Step 5: Solve for x
x = 7,494,073,101,239,811/81,418,276.80 - Step 6: Final answer
x = 92,044,113.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.