Finding the Fourth Proportional to 15,676,821.73, 21,635,378.30 and 8,708,854.75
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Solution
The fourth proportional to 15,676,821.73, 21,635,378.30 and 8,708,854.75 is: 12,018,977.46
Step by Step Solution
- Step 1: Write the proportion equation
15,676,821.73 : 21,635,378.30 = 8,708,854.75 : x - Step 2: Convert to fraction form
15,676,821.73/21,635,378.30 = 8,708,854.75/x - Step 3: Cross multiply
15,676,821.73x = 21,635,378.30 × 8,708,854.75 - Step 4: Simplify right side
15,676,821.73x = 188,419,367,067,783.75 - Step 5: Solve for x
x = 188,419,367,067,783.75/15,676,821.73 - Step 6: Final answer
x = 12,018,977.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.