Finding the Fourth Proportional to 68,319,197.95, 102,396,462.19 and 31,380,114.53
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Solution
The fourth proportional to 68,319,197.95, 102,396,462.19 and 31,380,114.53 is: 47,032,354.12
Step by Step Solution
- Step 1: Write the proportion equation
68,319,197.95 : 102,396,462.19 = 31,380,114.53 : x - Step 2: Convert to fraction form
68,319,197.95/102,396,462.19 = 31,380,114.53/x - Step 3: Cross multiply
68,319,197.95x = 102,396,462.19 × 31,380,114.53 - Step 4: Simplify right side
68,319,197.95x = 3,213,212,711,166,555.50 - Step 5: Solve for x
x = 3,213,212,711,166,555.50/68,319,197.95 - Step 6: Final answer
x = 47,032,354.12
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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.