Finding the Fourth Proportional to 681,040,122.40, 1,021,560,197.12 and 163,470,562.95
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Solution
The fourth proportional to 681,040,122.40, 1,021,560,197.12 and 163,470,562.95 is: 245,205,847.68
Step by Step Solution
- Step 1: Write the proportion equation
681,040,122.40 : 1,021,560,197.12 = 163,470,562.95 : x - Step 2: Convert to fraction form
681,040,122.40/1,021,560,197.12 = 163,470,562.95/x - Step 3: Cross multiply
681,040,122.40x = 1,021,560,197.12 × 163,470,562.95 - Step 4: Simplify right side
681,040,122.40x = 166,995,020,514,154,080 - Step 5: Solve for x
x = 166,995,020,514,154,080/681,040,122.40 - Step 6: Final answer
x = 245,205,847.68
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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.