Finding the Fourth Proportional to 91,977,129.51, 138,023,131.94 and 61,293,239.29
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Solution
The fourth proportional to 91,977,129.51, 138,023,131.94 and 61,293,239.29 is: 91,978,135.20
Step by Step Solution
- Step 1: Write the proportion equation
91,977,129.51 : 138,023,131.94 = 61,293,239.29 : x - Step 2: Convert to fraction form
91,977,129.51/138,023,131.94 = 61,293,239.29/x - Step 3: Cross multiply
91,977,129.51x = 138,023,131.94 × 61,293,239.29 - Step 4: Simplify right side
91,977,129.51x = 8,459,884,853,553,662 - Step 5: Solve for x
x = 8,459,884,853,553,662/91,977,129.51 - Step 6: Final answer
x = 91,978,135.20
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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.