Finding the Fourth Proportional to 68,319,197.70, 102,396,461.81 and 31,380,114.29
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Solution
The fourth proportional to 68,319,197.70, 102,396,461.81 and 31,380,114.29 is: 47,032,353.75
Step by Step Solution
- Step 1: Write the proportion equation
68,319,197.70 : 102,396,461.81 = 31,380,114.29 : x - Step 2: Convert to fraction form
68,319,197.70/102,396,461.81 = 31,380,114.29/x - Step 3: Cross multiply
68,319,197.70x = 102,396,461.81 × 31,380,114.29 - Step 4: Simplify right side
68,319,197.70x = 3,213,212,673,977,438 - Step 5: Solve for x
x = 3,213,212,673,977,438/68,319,197.70 - Step 6: Final answer
x = 47,032,353.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.