Finding the Fourth Proportional to 74,708,686.43, 111,833,187.18 and 48,745,081.70
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Solution
The fourth proportional to 74,708,686.43, 111,833,187.18 and 48,745,081.70 is: 72,967,657.53
Step by Step Solution
- Step 1: Write the proportion equation
74,708,686.43 : 111,833,187.18 = 48,745,081.70 : x - Step 2: Convert to fraction form
74,708,686.43/111,833,187.18 = 48,745,081.70/x - Step 3: Cross multiply
74,708,686.43x = 111,833,187.18 × 48,745,081.70 - Step 4: Simplify right side
74,708,686.43x = 5,451,317,845,860,493 - Step 5: Solve for x
x = 5,451,317,845,860,493/74,708,686.43 - Step 6: Final answer
x = 72,967,657.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.