Finding the Fourth Proportional to 1,238,927,092.20, 1,858,390,638.30 and 1,135,614,961.80
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Solution
The fourth proportional to 1,238,927,092.20, 1,858,390,638.30 and 1,135,614,961.80 is: 1,703,422,442.70
Step by Step Solution
- Step 1: Write the proportion equation
1,238,927,092.20 : 1,858,390,638.30 = 1,135,614,961.80 : x - Step 2: Convert to fraction form
1,238,927,092.20/1,858,390,638.30 = 1,135,614,961.80/x - Step 3: Cross multiply
1,238,927,092.20x = 1,858,390,638.30 × 1,135,614,961.80 - Step 4: Simplify right side
1,238,927,092.20x = 2,110,416,213,722,532,096 - Step 5: Solve for x
x = 2,110,416,213,722,532,096/1,238,927,092.20 - Step 6: Final answer
x = 1,703,422,442.70
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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.