Finding the Fourth Proportional to 42,455,546.48, 63,682,969.92 and 12,163,438.64
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Solution
The fourth proportional to 42,455,546.48, 63,682,969.92 and 12,163,438.64 is: 18,245,057.74
Step by Step Solution
- Step 1: Write the proportion equation
42,455,546.48 : 63,682,969.92 = 12,163,438.64 : x - Step 2: Convert to fraction form
42,455,546.48/63,682,969.92 = 12,163,438.64/x - Step 3: Cross multiply
42,455,546.48x = 63,682,969.92 × 12,163,438.64 - Step 4: Simplify right side
42,455,546.48x = 774,603,897,034,885.75 - Step 5: Solve for x
x = 774,603,897,034,885.75/42,455,546.48 - Step 6: Final answer
x = 18,245,057.74
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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.