Finding the Fourth Proportional to 79,794,315.81, 119,691,473.85 and 61,625,012.49
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Solution
The fourth proportional to 79,794,315.81, 119,691,473.85 and 61,625,012.49 is: 92,437,518.84
Step by Step Solution
- Step 1: Write the proportion equation
79,794,315.81 : 119,691,473.85 = 61,625,012.49 : x - Step 2: Convert to fraction form
79,794,315.81/119,691,473.85 = 61,625,012.49/x - Step 3: Cross multiply
79,794,315.81x = 119,691,473.85 × 61,625,012.49 - Step 4: Simplify right side
79,794,315.81x = 7,375,988,570,952,758 - Step 5: Solve for x
x = 7,375,988,570,952,758/79,794,315.81 - Step 6: Final answer
x = 92,437,518.84
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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.