Finding the Fourth Proportional to 66,530,216.80, 99,795,325.20 and 30,698,408.80
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Solution
The fourth proportional to 66,530,216.80, 99,795,325.20 and 30,698,408.80 is: 46,047,613.20
Step by Step Solution
- Step 1: Write the proportion equation
66,530,216.80 : 99,795,325.20 = 30,698,408.80 : x - Step 2: Convert to fraction form
66,530,216.80/99,795,325.20 = 30,698,408.80/x - Step 3: Cross multiply
66,530,216.80x = 99,795,325.20 × 30,698,408.80 - Step 4: Simplify right side
66,530,216.80x = 3,063,557,689,318,542 - Step 5: Solve for x
x = 3,063,557,689,318,542/66,530,216.80 - Step 6: Final answer
x = 46,047,613.20
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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.