Finding the Fourth Proportional to 78,718,201.20, 108,670,445.58 and 48,958,441.98
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Solution
The fourth proportional to 78,718,201.20, 108,670,445.58 and 48,958,441.98 is: 67,587,109.76
Step by Step Solution
- Step 1: Write the proportion equation
78,718,201.20 : 108,670,445.58 = 48,958,441.98 : x - Step 2: Convert to fraction form
78,718,201.20/108,670,445.58 = 48,958,441.98/x - Step 3: Cross multiply
78,718,201.20x = 108,670,445.58 × 48,958,441.98 - Step 4: Simplify right side
78,718,201.20x = 5,320,335,704,869,177 - Step 5: Solve for x
x = 5,320,335,704,869,177/78,718,201.20 - Step 6: Final answer
x = 67,587,109.76
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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.