Finding the Fourth Proportional to 115,119,408.40, 172,455,163.80 and 69,545,827.60
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Solution
The fourth proportional to 115,119,408.40, 172,455,163.80 and 69,545,827.60 is: 104,183,449.66
Step by Step Solution
- Step 1: Write the proportion equation
115,119,408.40 : 172,455,163.80 = 69,545,827.60 : x - Step 2: Convert to fraction form
115,119,408.40/172,455,163.80 = 69,545,827.60/x - Step 3: Cross multiply
115,119,408.40x = 172,455,163.80 × 69,545,827.60 - Step 4: Simplify right side
115,119,408.40x = 11,993,537,090,364,560 - Step 5: Solve for x
x = 11,993,537,090,364,560/115,119,408.40 - Step 6: Final answer
x = 104,183,449.66
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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.