Finding the Fourth Proportional to 78,775,821.92, 118,162,062.66 and 26,257,290.68
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Solution
The fourth proportional to 78,775,821.92, 118,162,062.66 and 26,257,290.68 is: 39,385,379.31
Step by Step Solution
- Step 1: Write the proportion equation
78,775,821.92 : 118,162,062.66 = 26,257,290.68 : x - Step 2: Convert to fraction form
78,775,821.92/118,162,062.66 = 26,257,290.68/x - Step 3: Cross multiply
78,775,821.92x = 118,162,062.66 × 26,257,290.68 - Step 4: Simplify right side
78,775,821.92x = 3,102,615,626,611,994 - Step 5: Solve for x
x = 3,102,615,626,611,994/78,775,821.92 - Step 6: Final answer
x = 39,385,379.31
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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.