Finding the Fourth Proportional to 170,127,252.20, 255,190,878.30 and 79,260,026.60
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Solution
The fourth proportional to 170,127,252.20, 255,190,878.30 and 79,260,026.60 is: 118,890,039.90
Step by Step Solution
- Step 1: Write the proportion equation
170,127,252.20 : 255,190,878.30 = 79,260,026.60 : x - Step 2: Convert to fraction form
170,127,252.20/255,190,878.30 = 79,260,026.60/x - Step 3: Cross multiply
170,127,252.20x = 255,190,878.30 × 79,260,026.60 - Step 4: Simplify right side
170,127,252.20x = 20,226,435,802,135,364 - Step 5: Solve for x
x = 20,226,435,802,135,364/170,127,252.20 - Step 6: Final answer
x = 118,890,039.90
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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.