Finding the Fourth Proportional to 87,840,694.20, 121,220,169.49 and 48,684,998.86
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Solution
The fourth proportional to 87,840,694.20, 121,220,169.49 and 48,684,998.86 is: 67,185,304.80
Step by Step Solution
- Step 1: Write the proportion equation
87,840,694.20 : 121,220,169.49 = 48,684,998.86 : x - Step 2: Convert to fraction form
87,840,694.20/121,220,169.49 = 48,684,998.86/x - Step 3: Cross multiply
87,840,694.20x = 121,220,169.49 × 48,684,998.86 - Step 4: Simplify right side
87,840,694.20x = 5,901,603,813,429,656 - Step 5: Solve for x
x = 5,901,603,813,429,656/87,840,694.20 - Step 6: Final answer
x = 67,185,304.80
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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.