Finding the Fourth Proportional to 17,918,117.80, 26,860,149.42 and 11,422,961.08
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Solution
The fourth proportional to 17,918,117.80, 26,860,149.42 and 11,422,961.08 is: 17,123,586.58
Step by Step Solution
- Step 1: Write the proportion equation
17,918,117.80 : 26,860,149.42 = 11,422,961.08 : x - Step 2: Convert to fraction form
17,918,117.80/26,860,149.42 = 11,422,961.08/x - Step 3: Cross multiply
17,918,117.80x = 26,860,149.42 × 11,422,961.08 - Step 4: Simplify right side
17,918,117.80x = 306,822,441,427,644.62 - Step 5: Solve for x
x = 306,822,441,427,644.62/17,918,117.80 - Step 6: Final answer
x = 17,123,586.58
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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.